G71Non-billable

Primary disorders of muscles

Diseases of the Nervous System·Diseases of myoneural junction and muscle (G70-G73)·category·FY 2026

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • arthrogryposis multiplex congenita (Q74.3)
  • metabolic disorders (E70-E88)
  • myositis (M60.-)

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G70-G73Diseases of myoneural junction and muscle (G70-G73)
G71Primary disorders of musclesNot billable
G71.0Muscular dystrophySubcodes
G71.1Myotonic disordersSubcodes
G71.2Congenital myopathiesSubcodes
G71.3Mitochondrial myopathy, not elsewhere classifiedBillable
G71.8Other primary disorders of musclesBillable
G71.9Primary disorder of muscle, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.