G71 ICD-10-CM Code: Primary disorders of muscles
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Coding at a Glance
- Tabular directives
- 3 Excludes2
Coding instructions
Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for G71 in the official ICD-10-CM tabular list, quoted as published.
Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- arthrogryposis multiplex congenita (Q74.3) Compare G71 vs Q74.3 →
- metabolic disorders (E70-E88) Compare G71 vs E70 →
- myositis (M60.-) Compare G71 vs M60 →
Coder workflow for G71
MedCoder structured workflow — derived from this code’s own official record
Before you code G71
- G71 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).
ReviewG71.0, G71.1, G71.2, G71.3, G71.8, G71.9
See the relationships section · Guide: How to choose an ICD-10-CM code →
Choose the right path
- Does the documentation support one of the more specific codes beneath G71?
Yes → Select that code and continue the checks below on its own page.
No → G71 cannot be reported as written; query for the specificity its subcategory needs.
Consider G71. Then confirm the code is valid for the date of service in the Verify section.
Documentation check
- The provider’s diagnostic statement
- Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Official instructions as workflow
Excludes2 — not part of G71(3 notes)
Coding workflow: The conditions named in this note are not included in G71. When the record documents both, both may be reported; the note is a boundary, not a prohibition.
See the official tabular notes · Guidelines I.A.12.b
Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.
Code Overview
MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.
Verify Before Coding
- Not billable as written — a more specific code is required: G71.00, G71.01, G71.02, G71.031, G71.032.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.
Relationships & Classification
MedCoder structured relationships — computed from published CMS and AHRQ datasets
Other codes that name G71 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
Referenced by 5 Excludes2 notes: M60 — Myositis, M60-M63 — Disorders of muscles (M60-M63), M61 — Calcification and ossification of muscle, M62 — Other disorders of muscle, M63 — Disorders of muscle in diseases classified elsewhere.
These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.
Referenced by 1 Code First instruction: M62.84 — Sarcopenia.
Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.
Contextual Map
Every relationship of G71 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Run G71 with these 14 related codes in Claim Check
Hierarchy
- G00-G99 — Chapter 6: Diseases of the Nervous System (G00-G99) (G00-G99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G70-G73 — Diseases of myoneural junction and muscle[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
Excludes2 (19)
- E70 — Disorders of aromatic amino-acid metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E71 — Disorders of branched-chain amino-acid metabolism and fatty-acid metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E72 — Other disorders of amino-acid metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E73 — Lactose intolerance[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E74 — Other disorders of carbohydrate metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E75 — Disorders of sphingolipid metabolism and other lipid storage disorders[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E76 — Disorders of glycosaminoglycan metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- E77 — Disorders of glycoprotein metabolism[Excludes2]: “metabolic disorders (E70-E88)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- and 11 more
Referenced by Excludes2 notes
- M60 — Myositis[Excludes2]: “muscular dystrophies and myopathies (G71-G72)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- M60-M63 — Disorders of muscles (M60-M63)[Excludes2]: “muscular dystrophies and myopathies (G71-G72)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- M61 — Calcification and ossification of muscle[Excludes2]: “muscular dystrophies and myopathies (G71-G72)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- M62 — Other disorders of muscle[Excludes2]: “muscular dystrophies and myopathies (G71-G72)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- M63 — Disorders of muscle in diseases classified elsewhere[Excludes2]: “muscular dystrophies and myopathies (G71-G72)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
Referenced by Code First instructions
- M62.84 — Sarcopenia[Code First]: “primary disorders of muscles (G71.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
Nearest codes (34)
- G71.0 — Muscular dystrophy[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.00 — Muscular dystrophy, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.01 — Duchenne or Becker muscular dystrophy[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.02 — Facioscapulohumeral muscular dystrophy[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.03 — Limb girdle muscular dystrophies[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.031 — Autosomal dominant limb girdle muscular dystrophy[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.032 — Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G71.033 — Limb girdle muscular dystrophy due to dysferlin dysfunction[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- and 26 more
Change history
- FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016
Common coding questions
Can G71 be billed directly?
No. G71 (Primary disorders of muscles) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, title, tabular notes and index terms Official source data
- CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
- Claim edits Official source data
- CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder structured relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates
Cite this page
Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.
MedCoder.ai. "G71 — Primary disorders of muscles." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/g71-primary-disorders-of-muscles
Change history
- FY2016 — October 1, 2015In the code set at ICD-10-CM adoptionPrimary disorders of muscles
No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to G71 in its code family, with their registry titles.
- G71.0 — Muscular dystrophy
- G71.00 — Muscular dystrophy, unspecified
- G71.01 — Duchenne or Becker muscular dystrophy
- G71.02 — Facioscapulohumeral muscular dystrophy
- G71.03 — Limb girdle muscular dystrophies
- G71.031 — Autosomal dominant limb girdle muscular dystrophy
- G71.032 — Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction
- G71.033 — Limb girdle muscular dystrophy due to dysferlin dysfunction
- G71.034 — Limb girdle muscular dystrophy due to sarcoglycan dysfunction
- G71.0340 — Limb girdle muscular dystrophy due to sarcoglycan dysfunction, unspecified
- G71.0341 — Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction
- G71.0342 — Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction
- G71.0349 — Limb girdle muscular dystrophy due to other sarcoglycan dysfunction
- G71.035 — Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- G71.036 — Limb girdle muscular dystrophy due to fukutin related protein dysfunction
- G71.038 — Other limb girdle muscular dystrophy
- G71.039 — Limb girdle muscular dystrophy, unspecified
- G71.09 — Other specified muscular dystrophies
- G71.1 — Myotonic disorders
- G71.11 — Myotonic muscular dystrophy
- G71.12 — Myotonia congenita
- G71.13 — Myotonic chondrodystrophy
- G71.14 — Drug induced myotonia
- G71.19 — Other specified myotonic disorders
- G71.2 — Congenital myopathies
- G71.20 — Congenital myopathy, unspecified
- G71.21 — Nemaline myopathy
- G71.22 — Centronuclear myopathy
- G71.220 — X-linked myotubular myopathy
- G71.228 — Other centronuclear myopathy
- G71.29 — Other congenital myopathy
- G71.3 — Mitochondrial myopathy, not elsewhere classified
- G71.8 — Other primary disorders of muscles
- G71.9 — Primary disorder of muscle, unspecified