M12 ICD-10-CA category: Other specific arthropathies
M12 isn’t a code on its own. Choose one of the 70 codes beneath it, the one the documentation supports.
Official description
M12Other specific arthropathies
ICD-10-CA · Canada
Codes in M12
M12 isn’t a code on its own. Open the group that matches what the note documents.
M12.0Chronic postrheumatic arthropathy [Jaccoud] (10 codes)M12.1Kaschin-Beck disease (10 codes)M12.2Villonodular synovitis (pigmented) (10 codes)M12.3Palindromic rheumatism (10 codes)M12.4Intermittent hydrarthrosis (10 codes)M12.5Traumatic arthropathy (10 codes)M12.8Other specific arthropathies, not elsewhere classified (10 codes)Notes for M12
As CIHI prints them, with any note M12 takes from the headings above it.
Includes
- Disorders affecting predominantly peripheral (limb) jointsFrom M00-M25 Arthropathies
Excludes
Conditions classified elsewhere.
- Arthropathy NOS (M13.9)arthrosis (M15-M19)cricoarytenoid arthropathy (J38.7)
- 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 M12 sits
- 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2Block M00-M25Arthropathies
- 3Block M05-M14Inflammatory polyarthropathies
- 4Category M12Other specific arthropathies
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
Is M12 a valid ICD-10-CA code?
No. M12 (Other specific arthropathies) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 70 codes; record the one the documentation supports.
Where is M12 in ICD-10-CA?
M12 sits under M05-M14 Inflammatory polyarthropathies, within M00-M25 Arthropathies, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).
What coding notes apply to M12?
ICD-10-CA lists Excludes, Includes, Note notes for M12, 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.