FY2027
MenuClose
Excludes1 pair

G11.4 vs G80-

G11.4 and G80 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on G80
hereditary spastic paraplegia (G11.4)
G11.4

Hereditary spastic paraplegia

Billable
Chapter 6
Diseases of the nervous system
Section
G10-G14
Indexed under
  • Ataxia, ataxy, ataxic › spastic hereditary
  • Paraplegia › familial spastic
  • Paraplegia › hereditary, spastic
  • Ataxia, ataxy, ataxic › hereditary › spastic
  • Paralysis, paralytic › familial › spastic
G80

Cerebral palsy

Not billable
Chapter 6
Diseases of the nervous system
Section
G80-G83

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027