NPI Atlas

H31.2 – Hereditary choroidal dystrophy

ICD-10-CM 2027 diagnosis code · Disorders of choroid and retina

Non-billable header

ICD-10-CM code H31.2

Code: H31.2 (claims format: H312)
Description: Hereditary choroidal dystrophy
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 7. Diseases of the eye and adnexa (H00-H59)
Block: H30-H36 Disorders of choroid and retina
Parent codes: H31

Billable codes under H31.2

H31.2 is a header code and cannot be used on claims. Choose the most specific code:

H31.20 – Hereditary choroidal dystrophy, unspecifiedBillable
H31.21 – ChoroideremiaBillable
H31.22 – Choroidal dystrophy (central areolar) (generalized) (peripapillary)Billable
H31.23 – Gyrate atrophy, choroidBillable
H31.29 – Other hereditary choroidal dystrophyBillable

Notes for H31.2

Excludes2 (not included here):

hyperornithinemia (E72.4)
ornithinemia (E72.4)

Related codes in H31

H31.0 – Chorioretinal scarsHeader
H31.1 – Choroidal degenerationHeader
H31.3 – Choroidal hemorrhage and ruptureHeader
H31.4 – Choroidal detachmentHeader
H31.8 – Other specified disorders of choroidBillable
H31.9 – Unspecified disorder of choroidBillable

Frequently asked questions

What is ICD-10 code H31.2?

H31.2 is the ICD-10-CM code for hereditary choroidal dystrophy, in the block H30-H36 (Disorders of choroid and retina).

Is H31.2 a billable code?

No. H31.2 is a header code with more specific child codes; report one of the billable codes listed above.

What category does H31.2 belong to?

It belongs to category H31 – Other disorders of choroid.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.