H31.21 – Choroideremia
ICD-10-CM 2027 diagnosis code · Disorders of choroid and retina
ICD-10-CM code
H31.21
- Code
H31.21(claims format:H3121)- Description
- Choroideremia
- Billable
- Yes – valid for HIPAA-covered transactions
- 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 › H31.2
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
H31.2 – Hereditary choroidal dystrophy
Index terms for H31.21
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H31.2
Frequently asked questions
What is ICD-10 code H31.21?
H31.21 is the ICD-10-CM code for choroideremia, in the block H30-H36 (Disorders of choroid and retina).
Is H31.21 a billable code?
Yes. H31.21 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H31.21 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.