H31.2 ICD-10-CA code: Hereditary choroidal dystrophy
H31.2 is the ICD-10-CA code for “Hereditary choroidal dystrophy” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
H31.2Hereditary choroidal dystrophy
ICD-10-CA · Canada · Also written H312
Index terms
Entries in CIHI’s alphabetical index that lead to H31.2. Searching the index by the condition the note names is how coders reach this code.
- Choroideremia
- Choroidopathy, hereditary
- Atrophia, gyrata of choroid and retina
- Degeneration, degenerative, chorioretinal, hereditary
- Degeneration, degenerative, choroid (colloid) (drusen), hereditary
- Atrophy, atrophic, choroid (central) (macular) (myopic) (retina) (senile), gyrate
- Dystrophy, dystrophia, choroid (central areolar) (generalized) (gyrate) (hereditary) (peripapillary)
Notes for H31.2
As CIHI prints them, with any note H31.2 takes from the headings above it.
Includes
- ChoroideremiaDystrophy, choroidal (central areolar)(generalized)(peripapillary)Gyrate atrophy, choroid
Excludes
Conditions classified elsewhere.
- Ornithinaemia (E72.4)
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 7: Diseases of the eye and adnexa (H00-H59)
Where H31.2 sits
- 1ChapterChapter 7: Diseases of the eye and adnexa (H00-H59)
- 2Block H30-H36Disorders of choroid and retina
- 3Category H31Other disorders of choroid
- 4Valid code H31.2Hereditary choroidal dystrophy
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code H31.2 mean?
H31.2 is the ICD-10-CA code for “Hereditary choroidal dystrophy” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is H31.2 in ICD-10-CA?
H31.2 sits under H31 Other disorders of choroid, within H30-H36 Disorders of choroid and retina, within Chapter 7: Diseases of the eye and adnexa (H00-H59).
What coding notes apply to H31.2?
ICD-10-CA lists Includes, Excludes notes for H31.2, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.