ICD-10-CM Tabular Index · Chapter 7 · FY 2026 H30–H36
Disorders of choroid and retina (H30-H36) ICD-10-CM
The H30–H36 section covers disorders of choroid and retina with 538 ICD-10-CM diagnosis codes, of which 410 are billable in fiscal year 2026. The section is organized into the 7 code ranges listed below.
✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the H30–H36 Code Range
ICD-10 codes H30-H36 cover a broad spectrum of disorders affecting the choroid and retina, including various inflammatory conditions, degenerations, dystrophies, detachments, and vascular occlusions involving these eye structures.
This range includes chorioretinal inflammations (H30), such as focal or disseminated inflammation with synonyms like right/left focal choroiditis or Harada's disease (Vogt-Koyanagi-Harada disease). Codes address other choroidal disorders (H31) including degeneration, hereditary dystrophies like choroideremia, hemorrhages, ruptures, and detachments. The section on retinal detachments and breaks (H33) specifies types like rhegmatogenous and tractional detachment and various retinal breaks. Retinal vascular occlusions (H34) cover artery and vein blockages, often identified by eye affected and complications like macular edema or neovascularization. Finally, other retinal disorders (H35) include retinopathies due to prematurity, age-related macular degeneration (both exudative and nonexudative), hemorrhages, dystrophies such as retinitis pigmentosa, microvascular abnormalities, and macular disorders. Codes in H36 denote retinal disorders linked to systemic diseases like sickle-cell retinopathy. This classification aids in precise coding for specific eye conditions affecting the retina and choroid.
Questions About This Page
How many codes are in the H30-H36 range?
The H30-H36 range contains 538 ICD-10-CM diagnosis codes in FY 2026. 410 of them are billable, and the rest are category headers that organize the section.
What conditions does H30-H36 cover?
The range covers disorders of choroid and retina. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
detachment of retinal pigment epithelium H35.72H35.73
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
