ICD-10-CM Tabular Index · Chapter 7 · FY 2027 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 2027. The section is organized into the 7 code ranges listed below.
✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
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
Disorders of the choroid and retina include inflammation, scars, detachments, blocked retinal blood vessels, and degeneration.
H30 separates focal and disseminated chorioretinal inflammation from posterior cyclitis. H31 groups other choroid disorders, including scars, degeneration, hemorrhage, rupture, and detachment. H32 identifies chorioretinal disorders in diseases classified elsewhere. H33 distinguishes retinal breaks with or without detachment and separates types of detachment. H34 groups retinal blood vessel blockages, including artery occlusions. H35 includes other retinal disorders, such as retinopathy, degeneration, hemorrhage, and separation of retinal layers. H36 identifies retinal disorders in diseases classified elsewhere.
For H34.81 and H34.83, the seventh character distinguishes macular edema, retinal blood vessel growth, and stable status. For dry macular degeneration under H35.31, it distinguishes early, intermediate, and advanced stages, including subfoveal involvement in advanced disease. For wet macular degeneration under H35.32, it distinguishes active or inactive choroidal blood vessel growth from an inactive scar.
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 2027. 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.
