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M65.10 ICD-10-CA code: Other infective (teno)synovitis, multiple sites

M65.10 is the ICD-10-CA code for “Other infective (teno)synovitis, multiple sites” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

M65.10

Other infective (teno)synovitis, multiple sites

Short description: Oth infective (teno)synovitis mult sites

ICD-10-CA · Canada · Also written M6510

Notes for M65.10

As CIHI prints them, with any note M65.10 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Chronic crepitant synovitis of hand and wrist (M70.0)current injury - see injury of ligament or tendon by body regionsoft tissue disorders related to use, overuse and pressure (M70.-)From M65 Synovitis and tenosynovitis
  • 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 M65.1 Other infective (teno)synovitis
  • 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 M65.10 sits

  1. 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
  2. 2Block M60-M79Soft tissue disorders
  3. 3Block M65-M68Disorders of synovium and tendon
  4. 4Category M65Synovitis and tenosynovitis
  5. 5Subcategory M65.1Other infective (teno)synovitis
  6. 6Valid code M65.10Other infective (teno)synovitis, multiple sites

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 M65.10 in the CIHI source

Frequently asked questions

What does ICD-10-CA code M65.10 mean?

M65.10 is the ICD-10-CA code for “Other infective (teno)synovitis, multiple sites” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is M65.10 in ICD-10-CA?

M65.10 sits under M65.1 Other infective (teno)synovitis, within M65 Synovitis and tenosynovitis, within M65-M68 Disorders of synovium and tendon, within M60-M79 Soft tissue disorders, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).

What coding notes apply to M65.10?

ICD-10-CA lists Note, Excludes notes for M65.10, 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.

Codes beside M65.10

M65.11Other infective (teno)synovitis, shoulder regionM65.12Other infective (teno)synovitis, upper armM65.13Other infective (teno)synovitis, forearmM65.14Other infective (teno)synovitis, handM65.15Other infective (teno)synovitis, pelvic region and thighM65.16Other infective (teno)synovitis, lower legM65.17Other infective (teno)synovitis, ankle and footM65.18Other infective (teno)synovitis, other siteM65.19Other infective (teno)synovitis, unspecified site