Icd 10 geographic atrophy. 2019 Sep;39(9):1664-1671. Icd 10 geographic atrophy

 
 2019 Sep;39(9):1664-1671Icd 10 geographic atrophy  The changes include 1,974 new codes, 311 deleted codes and 425 revised codes

313 for Nonexudative age-related macular degeneration, bilateral is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD), characterized by atrophic lesions that first start in the outer retina and progressively expand to cover the macula and the fovea, the center of the macula, leading to irreversible loss of vision over time. ICD-10 code H44. 8M). The 2024 edition of ICD-10-CM N50. N85. Geographic Atrophy – The advanced form of non-neovascular AMD, will have one or more zones of well- demarcated retinal pigment epithelial and/or choriocapillaris atrophy. Other signs of GA include: Colors seem dull or washed out. The 2024 edition of ICD-10-CM H35. A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. Ganser's syndrome F44. 1016/j. The 2024 edition of ICD-10-CM K14. Déjérine-Sottas disease. Ophthalmology 125, 369–390 (2018). Geographic Atrophy. We, therefore, set out a. 29 - Other optic atrophy. This was the first year ICD-10-CM was implemented into the HIPAA code set. Geographic atrophy (GA) is an advanced stage of age-related macular degeneration (AMD) that has no course of intervention to manage progression. 213 may differ. 521Atrophy of globe, right eye. Age-related macular degeneration (AMD) is the leading cause of vision loss and visual impairment in people over 50 years of age. 1 Classification of Peripheral Retinal Degenerations. What is Geographic Atrophy (GA)? Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration (commonly referred to as AMD). 89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. This is the American ICD-10-CM version of H31. 319 may differ. Fact Checked. 522 for Atrophy of globe, left eye is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . Other optic atrophy H47. The 2024 edition of ICD-10-CM K14. 1 Retrospective data analysed from multicentre clinical trials demonstrate the necessity of long term follow-up of patients treated with anti-vascular endothelial growth factor (anti-VEGF) agents, both to monitor long. 019 contain annotation back-referencesBy definition, advanced RPE atrophy (ie, geographic atrophy) or choroidal neovascularization (CNV) was required to establish a diagnosis of nonexudative AMD and exudative AMD, respectively. It is the advanced stage of dry ARMD. Applicable To. One hundred fifty-eight eyes of 89 patients with a mean (SD) age of 77. 21–Degenerative myopia, right eye H44. Pain or burning feeling in some cases, most often related to eating spicy or acidic foods. 40 may differ. 2147/OPTH. 1. This is the American ICD-10-CM version of H31. 219 became effective on October 1, 2023. Authors Antony J Wightman 1 2 3 , Robyn H Guymer 1 2 3. Example of retinal pigment epithelial loss associated with retinal features in antiangiogenic therapy of neovascular age-related macular degeneration. H02. GA is distinct from wet or neovascular AMD (nAMD),. We used a Delphi approach to determine consensus in key areas around diagnosis and management of GA. RPE cells are “one of the most metabolically active tissues in the human body,” he says, and are responsible for cleaning out the many waste products that develop in the retina. 119 may differ. This is the American ICD-10-CM version of H47. 9 is a billable diagnosis code used to specify degenerative disease of nervous system, unspecified. -) 124 Other disorders of the eye with mcc or thrombolytic agent. 291 became effective on October 1, 2023. Geographic Atrophy Diagnosis in the IRIS Ⓡ Registry: A Comparison Between Images and ICD-10 Codes Zhongdi Chu, Ph. Get crucial instructions for accurate ICD-10-CM H44. 2024 ICD-10-CM Range H00-H59. The 2024 edition of ICD-10-CM H47. 3. Prognosis. Geographic atrophy can affect one or both eyes, and a patient with geographic atrophy in one eye is more likely to develop it in the other. 522 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. H44. About 0. Answer: As of October 2018 MGD now has its own ICD-10 code: H02. Summary. Late indications are much more pronounced than early ones. Atrophia - see also Atrophy. For many women, vaginal atrophy not only makes intercourse painful but also leads to distressing urinary symptoms. Search All ICD-10; ICD-10-CM Diagnosis Codes; ICD-10-PCS Procedure Codes Other optic atrophy, right eye. The following code (s) above H31. 522 became effective on October 1, 2023. 9 - other international versions of ICD-10 G31. Patients and methods: This was a retrospective cohort analysis including 137 individuals with dry age-related macular degeneration without sfGA with 5 years of follow. The 2024 edition of ICD-10-CM H44. 3134 is applicable to adult patients aged 15 - 124 years inclusive. The 2024 edition of ICD-10-CM H35. Geographic Atrophy (GA) is an advanced form of dry macular degeneration in which large, well-demarcated sections of the retina stop functioning. Geographic atrophy (GA) is the atrophic late form of AMD and its prevalence increases markedly with age with around 1 in 5 persons aged 85 and above having GA in at least one eye. 119 became effective on October 1, 2023. Other complications include the development of CNV (occult or classic), and geographic atrophy. 119 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 8 - other international versions of ICD-10 N85. NUMERATOR NOTE: Denominator Exception(s) are determined on or any date during the performance period prior to the date of the denominator eligible encounter. 091 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Active lesions show a leading edge and resolve with subsequent RPE and choriocapillary atrophy. Findings In this study including 171 participants from 4 cohort studies, more than one-third of patients presented with foveal GA, and three-fourths of eyes with nonfoveal GA developed foveal GA a mean of 5. It has a higher prevalence in men and affects young to middle-aged adults. H44. SC is a rare clinical entity causing less than 5% of posterior uveitis cases. Views 176. 89 may differ. Added HCPCS J2781. 34 In 2005, Kaufman et al used a quantitative PCR technique to detect HSV-1 DNA in the tears and saliva of 50 asymptomatic HSV-infected patients. Age-related macular degeneration is a potentially progressive maculopathy characterized by drusen formation, macular pigmentary changes, geographic atrophy, and neovascularization of the choriocapillaris with exudation. 521 is a valid billable ICD-10 diagnosis code for Atrophy of globe, right eye . Keywords: Age-related macular degeneration; Geographic atrophy; ICD-10; Intermediate AMD. Atrophy. In retinal images, these regions of dead and dying cells resemble a map, hence the term geographic atrophy. Although the pathogenesis of GA has been studied extensively, there Key messages Studies have identified an increased mortality rate among individuals with geographic atrophy (GA) secondary to age-related macular degeneration. 0), Cushing syndrome (E24. -), malignant neoplasm (C00-C96), acute pancreatitis (K85. The 2024 edition of ICD-10-CM H17. Your symptoms will correspond with where you are in the geographic atrophy disease process. 7 (7. Henry, PhD,8 Daniela Ferrara, MD, PhD8 Geographic atrophy (GA) is an advanced form of age. No systemic disease associations have been identified. 8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The condition leads to central scotomas and permanent loss of visual acuity. 3 min read. 523 for Atrophy of globe, bilateral is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . It is found in the 2023 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2022 - Sep 30, 2023 . 2019. 9 may differ. Figure 6. Chapter 7 - Diseases of the eye and adnexa (H00-H59) » Disorders of optic nerve and visual pathways (H46-H47) » Optic atrophy (H47. Geographic atrophy (GA), also known as atrophic age-related macular degeneration (AMD) or advanced dry AMD, is an advanced form of age-related macular degeneration. D. Geographic atrophy (GA) is a progressive and irreversible retinal disease with no comprehensive recommendations for diagnosis or monitoring. 3. Geographic atrophy diagnosis in the IRIS® Registry: a comparison between images and ICD-10 codes Zhongdi Chu1, Kim Le1, Theodore Leng1,2, Durga Borkar3, Carlos Candano1, Aishwarya Ramakrishnan1, Ketki Khapare1, Michael Mbagwu1,2, Aracelis Z Torres1 1Verana Health, San Francisco, CA, USA 2Byers Eye Institute at Stanford, Stanford. , Feb. 211 for Primary optic atrophy, right eye is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . The name comes from the. 500 results found. Applicable To. K14. The 2024 edition of ICD-10-CM H35. Open in a separate window. However, around 10% of all AMD-related vision loss of 20/200 or worse is due to geographic atrophy of the foveal center. The term was introduced by Gass 1 in 1973 to refer to 1 or more circumscribed areas of atrophy in the macula that may gradually enlarge and coalesce. Title Progressive High (degenerative) Myopia. 31x3 for advanced atrophic dry AMD without subfoveal involvement—. 29 became effective on October 1, 2023. We performed a retrospective cross-sectional chart review of patients with a diagnosis of exudative AMD (International Classification of Disease 10 code H35. G12 Spinal muscular atrophy and related syndromes. The patients by now, because the foveal became involved, are starting to use their eccentric fixation with a. The 2024 edition of ICD-10-CM G31. 213 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2. Geographic atrophy is a chronic progressive condition that tends to occur in the late stage of age-related macular degeneration (AMD). ICD-10; CME/CE; MPR App; Haymarket Medical Network. scarring or diffuse, geographic atrophy of the macula. 09-15. H47. Geographic atrophy (GA) is a chronic eye condition in which the cells in the retina slowly break down and die. It may be inherited or acquired. Geographic atrophy causes vision loss that gets worse over time. This is the American ICD-10-CM version of H05. 1. This is the American ICD-10-CM version of H35. Cancer of the tongue, junctional zone; Overlapping squamous cell carcinoma of tongue; Primary tonsil cancer of junctional zone; Squamous cell carcinoma, overlapping sites of tongue; Malignant neoplasm of two or more contiguous. ICD-10 Diagnoses Code Description H35. Design, setting, and participants: Monocenter cohort study (Directional Spread in Geographic Atrophy [NCT02051998]) and analysis of data from a normative data study at a tertiary referral center. Gualino V, Tadayoni R, Cohen SY, et al. 3131 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 32 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail. 4, 5 Although neovascular AMD (nAMD) can be successfully treated with VEGF inhibitors, the treatment of GA remains a substantially unmet need. ICD-10-CM Diagnosis Code E11. Kim_washington_0250O_20517. Outer retinal atrophy develops in eyes with regression of SDD, a newly recognized form of late age-related macular degeneration. Drusen-related GA remains a large public health concern due to the. This is the American ICD-10-CM version of H44. ICD-10-CM Code for Nonexudative age-related macular degeneration, bilateral H35. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . . 89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2024 edition of ICD-10-CM H02. 529 may differ. Official Long Descriptor. It is defined as a sharply delineated round or oval area of hypopigmentation or depigmentation or absence of the RPE. 2024 ICD-10-CM Range H00-H59. The RPE tear rate in eyes with PED in natural history studies has been noted to be between 10% and 12%, but this rate seems to be accelerated after anti-VEGF therapy (up to 17%). 40 became effective on October 1, 2023. Multiple areas of pigment epithelium and choriocapillaris atrophy involving the macular area. K14. Dosing is set at about every 25 to 60 days, according to Apellis, the drug’s manufacturer, depending on the individual’s response. Abstract. 3 GA is estimated to affect ~5. This is the American ICD-10-CM version of H44. ICD-10. In another study, 27 eyes with myopic CNV were followed for at least 10 years. 093 contain annotation back-references that may be applicable to H31. 1, 2 Although atrophic lesions typically appear first in the perifoveal macula, sparing the foveal center, over time these lesions. Geographic atrophy is a chronic progressive degeneration of the macula and can be seen as part of late-stage age-related macular degeneration (AMD). 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. K76. The 2024 edition of ICD-10-CM H47. Ophthalmology. 4 Accurate documentation of. 3 GA is estimated to affect ~5 million people worldwide, 4 and to account for. ICD-10-CM Code for Nonexudative age-related macular degeneration, bilateral, advanced atrophic with subfoveal involvement H35. 521 for Atrophy of globe, right eye is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . The result is a “window view” of the choroid and sometimes the sclera. Geographic atrophy is a medical condition that causes central vision loss. Introduction. This new treatment won’t reverse vision loss but may slow the growth of GA lesions by 18% to 22% in the first 12 months. Epub 2018 Oct 8. smoking. 3210 - H35. 522. Subscribe to Codify by AAPC and get the code details in a flash. 2B1 - other international versions of ICD-10 H44. 3293: Exudative age-related macular degeneration [Geographic atrophy] The regions of atrophy result in a blind spot in the visual field. 2 (autoerythrocyte sensitization) Gargoylism E76. Garré's disease, osteitis (sclerosing) - see Osteomyelitis, specified type NEC. 52 for Atrophy of globe is a medical classification as listed by WHO under the range - Diseases of the eye and adnexa . Request a Demo 14. This is the American ICD-10-CM version of K13. Atrophy of globe, bilateral. 3133, H35. This is the American ICD-10-CM version of R49. 52 ICD-10 code H44. Patients included in the analysis had geographic atrophy (based on ICD-10 codes) in at least one eye. Acquired causes include ischemia, optic nerve neuropathy, glaucoma,. 89 - other international versions of ICD-10 N32. 60), and median. Subscribe to Codify by AAPC and get the code details in a flash. Subscribe to Codify by AAPC and get the code details in a flash. high blood pressure (hypertension) obesity. 89 became effective on October 1, 2023. [1] This process is not. Primary optic atrophy, bilateral. Clinically, optic atrophy manifests as changes in the color and the structure of the optic disc associated with variable. Applicable To. 7-9% of patients. 319 became effective on October 1, 2023. Peripapillary atrophy may either be white, yellow, or black in color, depending on. Risk of Progression. injury (trauma) of eye and orbit ( S05. Purpose: Geographic atrophy (GA) is an advanced form of nonexudative age-related macular degeneration (AMD) that lacks treatment options. 31x3 if it doesn’t, with “x” indicating laterality. This is the American ICD-10-CM version of N50. References. Geographic atrophy (GA), areas of atrophy in the macular retinal pigment epithelium (RPE), is the characteristic lesion in atrophic AMD; along with GA, there’s atrophy of the photoreceptors and. Clinical Reference. These lesions typically appear. Moreover, 82 of 91 eyes (90. 522 may differ. 31x3 if it doesn’t, with “x” indicating laterality. In this condition, the pigmented retinal cells die, resulting in patches that. Symptoms of geographic tongue may include: Smooth, red, irregularly shaped patches on the top or side of your tongue. 521 may differ. H44. injury (trauma) of eye and orbit ( S05. , Rochester, New York, USA) can be. Macular degeneration is an eye condition that affects the macula of your retina. Access to this feature is available in the following products: Find-A-Code Essentials. Category Disorders Of The Globe. This causes an abnormal appearance of the optic nerve and changes the color of the tissue surrounding the optic nerve. 3114 became effective on October 1, 2023. Reticular pseudodrusen are also found in other diseases, most notably Sorsby's fundus dystrophy, pseudoxanthoma elasticum and acquired vitelliform lesions. Characterizing the Healthcare Resource Utilization and Costs By Disease Severity Among Patients with Geographic Atrophy Secondary to Age-Related Macular Degeneration. The purpose of this study was to characterize the incidence of GA, the interrelationship between GA and choroidal neovascularization (CNV), the mean best. GA is a late, or advanced, stage of the disease. Learn more about Degenerative Myopia. The progression of geographic atrophy secondary to age-related macular degeneration. For more than a decade, ophthalmologists have treated wet age-related macular degeneration (AMD) with periodic eye injections and dry AMD with antioxidant vitamins. 1. The 2024 edition of ICD-10-CM G60. Age-related macular degeneration (AMD) is the main cause of blindness in the developed world in subjects aged ≥55 years, mainly with risk factors and genetic predisposition, with the number of patients affected being counted in millions and likely to increase with the population longevity. ICD-9. Atrophy of globe, right eye. A. ↓ See below for any exclusions, inclusions or special notations. 2. ICD-10. H35. 52. Apellis Pharmaceuticals. 9% at 80 years, to 11. 40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. due to radiation L57. Geographic atrophy can affect one or both eyes, and a patient with the disease in one eye is more likely to develop it in the other. This is the American ICD-10-CM version of K14. 2 may differ. 17, 2023 (GLOBE NEWSWIRE) -- Apellis Pharmaceuticals, Inc. The initial symptom may be found during reading, when one or several letters in a word are “missing. 521 became effective on October 1, 2023. H35. Pegcetacoplan for the Treatment of Geographic Atrophy Secondary to Age-Related Macular Degeneration (OAKS and DERBY): Two Multicentre, Randomised, Double-Masked, Sham-Controlled, Phase 3 Trials. 89 - other international versions of ICD-10 H44. 84 - other international versions of ICD-10 G31. 299 became effective on October 1, 2023. An alternative classification scheme uses a 9-step severity scale to allow for risk stratification and reproducibility of age-related macular changes. 30 is applicable to adult patients aged 15 through 124 years. Cancer of the of tongue; Cancer of the tongue, squamous cell; Primary malignant neoplasm of tongue; Squamous cell carcinoma of tongue. 88A MGD, Right upper and lower lids. 0 - other international versions of ICD-10 K14. This is the American ICD-10-CM version of H31. 269 may differ. 292 H47. 31: Nonexudative age-related macular degeneration:. 9 for Hypothyroidism, unspecified is a medical classification as listed by WHO under the range -Disorders of thyroid gland . Clinical Information A disorder characterized by loss of optic nerve fibers. Diseases of the eye and adnexa. The OCT correlate to the term geographic atrophy, which also is the OCT correlate for the more general term macular atrophy, is called complete RPE. Disease and Epidemiology. Applicable To. The final changes were posted on the CDC website on August 22, 2016. Diabetes Mellitus Type 1 . 7-9% of patients never experience vision loss, but have an aberrant EOG with normal ERG. H47. Aetna will not provide coverage for the treatment of geographic atrophy (GA) secondary to a condition other than AMD (such as Stargardt disease, cone rod dystrophy, toxic maculopathies). 0 became effective on October 1, 2023. 5A1. HCPCS C9151, Removed J3490. Description High myopia is defined as myopia greater than 6 diopters and an axial length of 26. Geographic atrophy is a chronic progressive condition that tends to occur in the late stage of age-related macular degeneration (AMD). Short description: Macular degeneration NOS. 351 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 8 is applicable to female patients. The following code (s) above H44. Geographic atrophy (GA) is the advanced atrophic form of age-related macular degeneration (AMD). Currently there is no approved or effective treatment. Purpose: To systematically characterize histologic features of multiple chorioretinal layers in eyes with geographic atrophy, or complete retinal pigment epithelium (RPE) and outer retinal atrophy, secondary to age-related macular degeneration, including Henle fiber layer and outer nuclear layer; and to compare these changes to those in the underlying RPE. scarring or diffuse, geographic atrophy of the macula. --Vision usually recovers within 2 mo. 093 became effective on October 1, 2023. Complement C3 Inhibitor Pegcetacoplan for Geographic Atrophy Secondary to Age-Related Macular Degeneration: A Randomized Phase 2 Trial Ophthalmology . H44. Food and Drug Administration (FDA) has approved SYFOVRE™ (pegcetacoplan injection) for the treatment of geographic atrophy (GA) secondary to. 211 became effective on October 1, 2023. Geographic atrophy (GA) is considered the late stage of the dry form of age-related macular degeneration (AMD) (1). 522 is a valid billable ICD-10 diagnosis code for Atrophy of globe, left eye . ICD-10-CM* is the coding format that specifies diseases like GA 1. 1 History; 2 Disease. 291 is a valid billable ICD-10 diagnosis code for Other optic atrophy, right eye . Postpolio syndrome is characterised by the exacerbation of existing or new health problems, most often muscle weakness and fatigability, general fatigue, and pain, after a period of stability subsequent to acute polio infection. Central Areolar Choroidal Dystrophy (CACD) is a rare hereditary dystrophy of the macular area, with fewer than 50,000 persons living with this disorder. 291 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Geographic atrophy in age-related macular degeneration and TLR3. H35. ICD-10-CM Diagnosis Code M62. Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD), characterized by atrophic lesions that first start in the outer retina and progressively expand to cover the macula and the fovea, the center of the macula, leading to irreversible loss of vision over time. However, most patients retain. No abstract available. H35. Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD), characterized by progressive and irreversible loss of the retinal pigment epithelium, photoreceptors, and underlying choriocapillaris. 1, 2, 3 Over 5 million patients worldwide are estimated to have GA, with 1 million in the United States alone. 1, 2020 . It may be inherited or acquired. 532 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 3110 - H35. Geographic atrophy (GA) affects 5 million individuals worldwide and is an advanced stage of dry age-related macular degeneration (AMD), leading to vision loss and accounting for 20% of legal blindness cases in North America. The last stage of dry AMD is called geographic atrophy. 9 became effective on October 1, 2023. “Geographic atrophy” is a medical term that refers to later-stage cases of dry age-related macular degeneration (AMD). Introduction. This is the American ICD-10-CM version of K29. GA is distinct from wet or neovascular AMD (nAMD. Advanced age-related macular degeneration (AMD) is defined by the presence of geographic atrophy (GA) or choroidal neovascularization. The disease eventually progresses to the advanced stage, termed geographic atrophy (GA), wherein large patches of dead RPE and photoreceptors cause irreversible vision loss. Patient has geographic atrophy secondary to age-related macular degeneration; AND B. ICD-10. This is the American ICD-10-CM version of G11. Purpose To examine the association between geographic atrophy (GA) disease characteristics and mortality risk. 23–Degenerative myopia, bilateral. Age-related macular degeneration (AMD) is a multifactorial disease and a leading cause of vision impairment in elderly people in Western society. Changes in the correct visual acuity and reduction in geographic atrophy progression were evaluated. Atrophy of globe, left eye Billable Code. 3114 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 269 - other international versions of ICD-10 H21. In Cohort 2 (GA:nAMD), 8% of study eyes had 20/20 vision or better, whereas 37% had vision ranging from 20/20 to 20/40. Geographic atrophy (GA) is a chronic, progressive degeneration of the macula that can occur in some people with dry macular degeneration. 523 may differ. The Progression of Geographic Atrophy Secondary to Age-Related Macular Degeneration Monika Fleckenstein, MD,1 Paul Mitchell, MD, PhD,2 K. Symptoms of Geographic Atrophy. eFigure 5. In GA patients, visual acuity (VA) can still be good if the. In clinical trials, Syfovre™ was shown to reduce the rate of geographic atrophy lesion growth by up to 36% with monthly injection. 40 became effective on October 1, 2023. 3113 Nonexudative age-related macular degeneration, right eye advanced atrophic without subfovealIn patients with a later stage of AMD, neovascular AMD is 1. 12842. Showing 1-25: ICD-10-CM Diagnosis Code H47. Search All ICD-10 Toggle Dropdown. Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD) that leads to progressive and irreversible loss of visual function. Geographic atrophy (GA) is a progressive degenerative disease that significantly contributes to visual impairment in individuals aged 50 years and older.