M63.0 ICD-10-CA code: Myositis in bacterial diseases classified elsewhere
M63.0 is the ICD-10-CA code for “Myositis in bacterial diseases classified elsewhere” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
M63.0Myositis in bacterial diseases classified elsewhere
Short description: Myositis in bacterial diseases cl/e
ICD-10-CA · Canada · Also written M630
Notes for M63.0
As CIHI prints them, with any note M63.0 takes from the headings above it.
Includes
- Myositis in:• leprosy [Hansen's disease] (A30.-†)• syphilis (A51.4†)(A52.7†)
Excludes
Conditions classified elsewhere.
- Myopathy in:• endocrine diseases (G73.5*)• metabolic diseases (G73.6*)From M63 Disorders of muscle in diseases classified elsewhere
- Dermatopolymyositis (M33.-)muscular dystrophies and myopathies (G71-G72)myopathy in:• amyloidosis (E85.-)• polyarteritis nodosa (M30.0)• rheumatoid arthritis (M05.3)• scleroderma (M34.-)• Sjögren's syndrome (M35.0)• systemic lupus erythematosus (M32.-)From M60-M63 Disorders of muscles
- Certain:• conditions originating in the perinatal period (P00-P96)• disorders of the temporomandibular joint (K07.6)• infectious and parasitic diseases (A00-B99)compartment syndrome (T79.6)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 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Note
- The following fifth characters represent the following sites of involvement:0 Multiple sites1 Shoulder region: clavical , scapula — joint acromioclavicular, glenohumeral, sternoclavicular2 Upper arm: humerus — elbow joint,3 Forearm: radius , ulna — wrist joint,4 Hand: carpus, fingers, metacarpus — joints between these bones,5 Pelvic region and thigh: buttock , femur , pelvis — joint hip , sacroiliac6 Lower leg: fibula , tibia — knee joint7 Ankle and foot: metatarsus, tarsus, toes — other joints in foot8 Other:head neck ribs skull trunk vertebral column9 Site unspecifiedFrom Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Where M63.0 sits
- 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2Block M60-M79Soft tissue disorders
- 3Block M60-M63Disorders of muscles
- 4Category M63Disorders of muscle in diseases classified elsewhere
- 5Valid code M63.0Myositis in bacterial diseases classified elsewhere
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 M63.0 mean?
M63.0 is the ICD-10-CA code for “Myositis in bacterial diseases classified elsewhere” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is M63.0 in ICD-10-CA?
M63.0 sits under M63 Disorders of muscle in diseases classified elsewhere, within M60-M63 Disorders of muscles, within M60-M79 Soft tissue disorders, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).
What coding notes apply to M63.0?
ICD-10-CA lists Includes, Excludes, Note notes for M63.0, 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.