Z53.32 Thoracoscopic surgical procedure converted to open procedure

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V64.42 Thoracoscopic surgical procedure converted to open procedure

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Diagnosis Index entries for Z53.32

• Procedure (surgical) › converted › thoracoscopic to open

Nearby codes

• Z53.20 Procedure and treatment not carried out because of patient's decision for unspecified reasons
• Z53.21 Procedure and treatment not carried out due to patient leaving prior to being seen by health care provider
• Z53.29 Procedure and treatment not carried out because of patient's decision for other reasons
• Z53.3 Procedure converted to open procedure
• Z53.31 Laparoscopic surgical procedure converted to open procedure
• Z53.32 Thoracoscopic surgical procedure converted to open procedure (this code)
• Z53.33 Arthroscopic surgical procedure converted to open procedure
• Z53.39 Other specified procedure converted to open procedure
• Z53.8 Procedure and treatment not carried out for other reasons
• Z53.9 Procedure and treatment not carried out, unspecified reason