M84.2 ICD-10-CA subcategory: Delayed union of fracture
M84.2 isn’t a code on its own. Choose one of the 10 codes beneath it, the one the documentation supports.
Official description
M84.2Delayed union of fracture
ICD-10-CA · Canada · Also written M842
Codes in M84.2
M84.2 isn’t a code on its own. Open the code that matches what the note documents.
M84.20Delayed union of fracture, multiple sitesM84.21Delayed union of fracture, shoulder regionM84.22Delayed union of fracture, upper armM84.23Delayed union of fracture, forearmM84.24Delayed union of fracture, handM84.25Delayed union of fracture, pelvic region and thighM84.26Delayed union of fracture, lower legM84.27Delayed union of fracture, ankle and footM84.28Delayed union of fracture, other siteM84.29Delayed union of fracture, unspecified siteNotes for M84.2
As CIHI prints them, with any note M84.2 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- 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]
- 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 M84.2 sits
- 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2Block M80-M94Osteopathies and chondropathies
- 3Block M80-M85Disorders of bone density and structure
- 4Category M84Disorders of continuity of bone
- 5Subcategory M84.2Delayed union of fracture
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 M84.2 a valid ICD-10-CA code?
No. M84.2 (Delayed union of fracture) is a subcategory heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 10 codes; record the one the documentation supports.
Where is M84.2 in ICD-10-CA?
M84.2 sits under M84 Disorders of continuity of bone, within M80-M85 Disorders of bone density and structure, within M80-M94 Osteopathies and chondropathies, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).
What coding notes apply to M84.2?
ICD-10-CA lists Note, Excludes notes for M84.2, 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.