I97.121 Postprocedural cardiac arrest following other surgery

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

Applies from I97 Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified

Excludes2 (not included here)

• postprocedural shock (T81.1-)

Applies from I97.1 Other postprocedural cardiac functional disturbances

Excludes2 (not included here)

• acute pulmonary insufficiency following thoracic surgery (J95.1)
• intraoperative cardiac functional disturbances (I97.7-)

MS-DRG index

Defines the logic of DRG(s) 314-316 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 429.4 Functional disturbances following cardiac surgery (approximate)
• 429.4 Functional disturbances following cardiac surgery (approximate)
• 997.1 Cardiac complications, not elsewhere classified (approximate)

Code annotations containing back-references to I97.121

Back-references to I97.1

• Type 2 Excludes: I97.7 Intraoperative cardiac functional disturbances ("postprocedural cardiac functional disturbances (I97.1-)")
• Type 2 Excludes: J95.1 Acute pulmonary insufficiency following thoracic surgery ("Functional disturbances following cardiac surgery (I97.0, I97.1-)")
• Type 2 Excludes: J95.2 Acute pulmonary insufficiency following nonthoracic surgery ("Functional disturbances following cardiac surgery (I97.0, I97.1-)")
• Type 2 Excludes: J95.3 Chronic pulmonary insufficiency following surgery ("Functional disturbances following cardiac surgery (I97.0, I97.1-)")

Diagnosis Index entries for I97.121

• Complication (s) (from) (of) › postprocedural › cardiac arrest › following other surgery

Nearby codes

• I97.11 Postprocedural cardiac insufficiency
• I97.110 Postprocedural cardiac insufficiency following cardiac surgery
• I97.111 Postprocedural cardiac insufficiency following other surgery
• I97.12 Postprocedural cardiac arrest
• I97.120 Postprocedural cardiac arrest following cardiac surgery
• I97.121 Postprocedural cardiac arrest following other surgery (this code)
• I97.13 Postprocedural heart failure
• I97.130 Postprocedural heart failure following cardiac surgery
• I97.131 Postprocedural heart failure following other surgery
• I97.19 Other postprocedural cardiac functional disturbances
• I97.190 Other postprocedural cardiac functional disturbances following cardiac surgery