G71.8 ICD-10-CA code: Other primary disorders of muscles
G71.8 is the ICD-10-CA code for “Other primary disorders of muscles” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
G71.8Other primary disorders of muscles
ICD-10-CA · Canada · Also written G718
Index terms
Entries in CIHI’s alphabetical index that lead to G71.8. Searching the index by the condition the note names is how coders reach this code.
- Myopathy, primary, specified NEC
- Myopathy, hereditary, specified NEC
- Amyotrophia, amyotrophy, amyotrophic
Notes for G71.8
As CIHI prints them, with any note G71.8 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Arthrogryposis multiplex congenita (Q74.3)metabolic disorders (E70-E90)myositis (M60.-)From G71 Primary disorders of muscles
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 6: Diseases of the nervous system (G00-G99)
Where G71.8 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G70-G73Diseases of myoneural junction and muscle
- 3Category G71Primary disorders of muscles
- 4Valid code G71.8Other primary disorders of muscles
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code G71.8 mean?
G71.8 is the ICD-10-CA code for “Other primary disorders of muscles” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is G71.8 in ICD-10-CA?
G71.8 sits under G71 Primary disorders of muscles, within G70-G73 Diseases of myoneural junction and muscle, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G71.8?
ICD-10-CA lists Excludes notes for G71.8, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.