ICD-10-CM 2027
ICD-10 code for Diataxia
From the official ICD-10-CM alphabetic index entry “Diataxia, cerebral”. Page updated September 29, 2026.
About coding Diataxia
The ICD-10-CM code for Diataxia is G80.4 (Ataxic cerebral palsy).
Within G80 (cerebral palsy), G80.4 is specifically for Ataxic cerebral palsy. Related codes cover spastic quadriplegic cerebral palsy (G80.0), spastic diplegic cerebral palsy (G80.1), spastic hemiplegic cerebral palsy (G80.2), Athetoid cerebral palsy (G80.3), other cerebral palsy (G80.8) and unspecified (G80.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Diataxia ICD-10 codes
What is the ICD-10 code for Diataxia?
- G80.4 — Ataxic cerebral palsy.
Is G80.4 billable?
- Yes. G80.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G80.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G80.4 as a principal diagnosis.
Is G80.4 a CC or MCC?
- No. G80.4 is neither a CC nor an MCC under MS-DRG v44.0.