T81.321 Disruption or dehiscence of closure of internal operation (surgical) wound of abdominal wall muscle or fascia

The ICD-10-CM code for Disruption or dehiscence of closure of internal operation (surgical) wound of abdominal wall muscle or fascia is T81.321 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

19: Injury, poisoning and certain other consequences of external causes (S00-T88)

Section

T80-T88: Complications of surgical and medical care, not elsewhere classified (T80-T88)

Category T81

95 codes (80 billable)

FY2026 Status

Introduced in FY2025

Also Known As

ICD-10-CM Alphabetic Index entries that lead to T81.321:

• Disruption (of) › closure of › abdominal wall muscle or fascia
• Dehiscence (of) › closure of › abdominal wall muscle or fascia
• Burst stitches or sutures (complication of surgery) › internal operation wound › abdominal wall muscle or fascia
• Dehiscence (of) › operation wound NEC › internal operation wound (deep) › abdominal wall muscle or fascia
• Disruption (of) › wound › operation › internal operation wound (deep) › abdominal wall muscle or fascia

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool