M96.A4 Flail chest associated with chest compression and cardiopulmonary resuscitation

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from M96 Intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

Excludes2 (not included here)

• arthropathy following intestinal bypass (M02.0-)
• complications of internal orthopedic prosthetic devices, implants and grafts (T84.-)
• disorders associated with osteoporosis (M80)
• periprosthetic fracture around internal prosthetic joint (M97.-)
• presence of functional implants and other devices (Z96-Z97)

MS-DRG index

Defines the logic of DRG(s) 183-185 in MDC 04.

Code annotations containing back-references to M96.A4

Back-references to M96

• Type 1 Excludes: M40 Kyphosis and lordosis ("postprocedural kyphosis and lordosis (M96.-)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("postprocedural musculoskeletal disorders (M96.-)")
• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-)")

Diagnosis Index entries for M96.A4

• Flail › chest › associated with chest compression and cardiopulmonary resuscitation

Nearby codes

• M96.89 Other intraoperative and postprocedural complications and disorders of the musculoskeletal system
• M96.A Fracture of ribs, sternum and thorax associated with compression of the chest and cardiopulmonary resuscitation
• M96.A1 Fracture of sternum associated with chest compression and cardiopulmonary resuscitation
• M96.A2 Fracture of one rib associated with chest compression and cardiopulmonary resuscitation
• M96.A3 Multiple fractures of ribs associated with chest compression and cardiopulmonary resuscitation
• M96.A4 Flail chest associated with chest compression and cardiopulmonary resuscitation (this code)
• M96.A9 Other fracture associated with chest compression and cardiopulmonary resuscitation