M95.4 Acquired deformity of chest and rib

Billable ICD-10-CM code, FY2026.

Applies from M95 Other acquired deformities of musculoskeletal system and connective tissue

Excludes2 (not included here)

• acquired absence of limbs and organs (Z89-Z90)
• acquired deformities of limbs (M20-M21)
• congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
• deforming dorsopathies (M40-M43)
• dentofacial anomalies [including malocclusion] (M26.-)
• postprocedural musculoskeletal disorders (M96.-)

MS-DRG index

Defines the logic of DRG(s) 564-566 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 738.3 Acquired deformity of chest and rib (approximate)

Diagnosis Index entries for M95.4

• Barrel chest
• Concavity chest wall
• Deformity › chest (acquired) (wall)
• Deformity › rib (acquired)
• Deformity › sternum (acquired)
• Deformity › thorax (acquired) (wall)
• Depression (acute) (mental) › chest wall
• Depression (acute) (mental) › sternum
• Funnel › breast (acquired)
• Funnel › chest (acquired)
• Pectus › carinatum (congenital) › acquired
• Pectus › excavatum (congenital) › acquired
• Pigeon › breast or chest (acquired)
• Retraction › sternum (congenital) › acquired
• Shoemaker's chest

Nearby codes

• M95.10 Cauliflower ear, unspecified ear
• M95.11 Cauliflower ear, right ear
• M95.12 Cauliflower ear, left ear
• M95.2 Other acquired deformity of head
• M95.3 Acquired deformity of neck
• M95.4 Acquired deformity of chest and rib (this code)
• M95.5 Acquired deformity of pelvis
• M95.8 Other specified acquired deformities of musculoskeletal system
• M95.9 Acquired deformity of musculoskeletal system, unspecified