G11.4 vs G80
G11.4 (Hereditary spastic paraplegia) compared with G80 (Cerebral palsy), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
Yes, when both are documented. G11.4 carries an Excludes2 note covering G80: “cerebral palsy (G80.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
No — do not report together. G80 carries an Excludes1 note covering G11.4: “hereditary spastic paraplegia (G11.4)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G11.4Hereditary spastic paraplegia | G80Cerebral palsy | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Hereditary spastic paraplegia is a billable ICD-10-CM diagnosis code (G11.4). | Cerebral palsy is a non-billable ICD-10-CM category code (G80). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources