2026 ICD-10-CM Diagnosis Code G71Primary disorders of muscles

ICD-10-CM Codes›G00–G99›G70-G73›G71

ICD-10-CM G71
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G71 is a non-billable ICD-10-CM category code for primary disorders of muscles, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G71.00, G71.01, G71.02, and G71.031.

Code Identity

ICD-10-CM Code
G71
Billable Status
No — Non-Billable Category
Code Describes
Primary disorders of muscles
Short Description
Primary disorders of muscles
Same as the full description in the CMS dataset.
Chapter
G70-G73
Diseases of myoneural junction and muscle

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG70-G73Diseases of myoneural junction and muscle
CategoryG71Primary disorders of muscles
This CodeG71Primary disorders of muscles

Specific Coding for Primary disorders of musclesOverview

Non-specific codes like G71 require more characters. Use one of these billable codes instead:

  • G71.0 for Muscular dystrophy

  • Use G71.00 for Muscular dystrophy, unspecified

  • Use G71.01 for Duchenne or Becker muscular dystrophy

  • Use G71.02 for Facioscapulohumeral muscular dystrophy

  • G71.03 for Limb girdle muscular dystrophies

  • Use G71.09 for Other specified muscular dystrophies

  • G71.1 for Myotonic disorders

  • Use G71.11 for Myotonic muscular dystrophy

  • Use G71.12 for Myotonia congenita

  • Use G71.13 for Myotonic chondrodystrophy

  • Use G71.14 for Drug induced myotonia

  • Use G71.19 for Other specified myotonic disorders

  • G71.2 for Congenital myopathies

  • Use G71.20 for Congenital myopathy, unspecified

  • Use G71.21 for Nemaline myopathy

  • G71.22 for Centronuclear myopathy

  • Use G71.29 for Other congenital myopathy

  • Use G71.3 for Mitochondrial myopathy, not elsewhere classified

  • Use G71.8 for Other primary disorders of muscles

  • Use G71.9 for Primary disorder of muscle, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 2 Excludes

  • arthrogryposis multiplex congenita Q74.3
  • metabolic disorders E70 E88
  • myositis M60

Patient EducationClinical

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G71Overview

Is G71 (Primary disorders of muscles) a billable code?

No. This is a category header that groups the codes for primary disorders of muscles, and headers cannot be submitted on claims. Claims for primary disorders of muscles need a more specific code from this category, such as G71.00, G71.01, and G71.02.