M12.05 ICD-10-CA code: Chronic postrheumatic arthropathy [Jaccoud], pelvic region and thigh

M12.05 is the ICD-10-CA code for “Chronic postrheumatic arthropathy [Jaccoud], pelvic region and thigh” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

M12.05

Chronic postrheumatic arthropathy [Jaccoud], pelvic region and thigh

Short description: Chronic postrheum arthropathy pelv thigh

ICD-10-CA · Canada · Also written M1205

Notes for M12.05

As CIHI prints them, with any note M12.05 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)From M12 Other specific arthropathies
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

[To review the anatomical site captured in the 5th character subclassification see Chapter XIII]From M12.0 Chronic postrheumatic arthropathy [Jaccoud]
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 M12.05 sits

1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
2Block M00-M25Arthropathies
3Block M05-M14Inflammatory polyarthropathies
4Category M12Other specific arthropathies
5Subcategory M12.0Chronic postrheumatic arthropathy [Jaccoud]
6Valid code M12.05Chronic postrheumatic arthropathy [Jaccoud], pelvic region and thigh

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.

See M12.05 in the CIHI source

Frequently asked questions

What does ICD-10-CA code M12.05 mean?

M12.05 is the ICD-10-CA code for “Chronic postrheumatic arthropathy [Jaccoud], pelvic region and thigh” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is M12.05 in ICD-10-CA?

M12.05 sits under M12.0 Chronic postrheumatic arthropathy [Jaccoud], within M12 Other specific arthropathies, within 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 M12.05?

ICD-10-CA lists Note, Excludes, Includes notes for M12.05, 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.

View M12.0