M95.4 ICD-10-CA code: Acquired deformity of chest and rib
M95.4 is the ICD-10-CA code for “Acquired deformity of chest and rib” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
M95.4Acquired deformity of chest and rib
ICD-10-CA · Canada · Also written M954
Index terms
Entries in CIHI’s alphabetical index that lead to M95.4. Searching the index by the condition the note names is how coders reach this code.
- Barrel chest
- Shoemaker's chest
- Depression, sternum
- Concavity chest wall
- Depression, chest wall
- Funnel, chest (acquired)
- Deformity, rib (acquired)
- Funnel, breast (acquired)
- Deformity, sternum (acquired)
- Deformity, chest (acquired) (wall)
- Pigeon, breast or chest (acquired)
- Deformity, thorax (acquired) (wall)
- Pectus, carinatum (congenital), acquired
- Pectus, excavatum (congenital), acquired
- Retraction, sternum (congenital), acquired
Notes for M95.4
As CIHI prints them, with any note M95.4 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Acquired:• absence of limbs and organs (Z89-Z90)• deformities of limbs (M20-M21)congenital malformations and deformations of the musculoskeletal system (Q65-Q79)deforming dorsopathies (M40-M43)dentofacial anomalies [including malocclusion] (K07.-)postprocedural musculoskeletal disorders (M96.-)From M95 Other acquired deformities of musculoskeletal system and connective tissue
- 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 M95.4 sits
- 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2Block M95-M99Other disorders of the musculoskeletal system and connective tissue
- 3Category M95Other acquired deformities of musculoskeletal system and connective tissue
- 4Valid code M95.4Acquired deformity of chest and rib
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 M95.4 mean?
M95.4 is the ICD-10-CA code for “Acquired deformity of chest and rib” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is M95.4 in ICD-10-CA?
M95.4 sits under M95 Other acquired deformities of musculoskeletal system and connective tissue, within M95-M99 Other disorders of the musculoskeletal system and connective tissue, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).
What coding notes apply to M95.4?
ICD-10-CA lists Excludes, Note notes for M95.4, 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.