G11.5 – Hypomyelination - hypogonadotropic hypogonadism - hypodontia
ICD-10-CM 2027 diagnosis code · Systemic atrophies primarily affecting the central nervous system
- Code
G11.5(claims format:G115)- Description
- Hypomyelination - hypogonadotropic hypogonadism - hypodontia
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G10-G14 Systemic atrophies primarily affecting the central nervous system
- Parent codes
- G11
Notes for G11.5
- 4H syndrome
- Pol III-related leukodystrophy
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
G11 – Hereditary ataxia
Index terms for G11.5
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in G11
- G11.0 – Congenital nonprogressive ataxiaBillable
- G11.1 – Early-onset cerebellar ataxiaHeader
- G11.2 – Late-onset cerebellar ataxiaBillable
- G11.3 – Cerebellar ataxia with defective DNA repairBillable
- G11.4 – Hereditary spastic paraplegiaBillable
- G11.6 – Leukodystrophy with vanishing white matter diseaseBillable
- G11.8 – Other hereditary ataxiasBillable
- G11.9 – Hereditary ataxia, unspecifiedBillable
Frequently asked questions
What is ICD-10 code G11.5?
G11.5 is the ICD-10-CM code for hypomyelination - hypogonadotropic hypogonadism - hypodontia, in the block G10-G14 (Systemic atrophies primarily affecting the central nervous system).
Is G11.5 a billable code?
Yes. G11.5 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does G11.5 belong to?
It belongs to category G11 – Hereditary ataxia.
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.