T81.43 Infection following a procedure, organ and space surgical site
The ICD-10-CM code for Infection following a procedure, organ and space surgical site is T81.43 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- T80-T88: Complications of surgical and medical care, not elsewhere classified (T80-T88)
- Category T81
- 95 codes (80 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to T81.43:
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › intra-abdominal › following procedure
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › peritoneum, peritoneal (perforated) (ruptured) › postoperative
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › subphrenic › postoperative
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › intra-abdominal › postprocedural
- Infection, infected, infective (opportunistic) › postoperative wound › surgical site › organ and space
Inclusion Terms
- Intra-abdominal abscess following a procedure
- Subphrenic abscess following a procedure
Official Coding Guidelines
Postprocedural wound/obstetric wound infection sequencing with sepsis(b) Sepsis due to a postprocedural infection For sepsis following a postprocedural wound (surgical site) infection, a code from T81.41 to T81.43, Infection following a procedure, T81.49, Infection following a procedure, other surgical site, or a code from O86.00 to O86.03, Infection of obstetric surgical wound, or code O86.09, Infection of obstetric surgical wound, other surgical site, that identifies the site of the infection should be sequenced first, if known. Assign an additional code for sepsis following a procedure (T81.44) or sepsis following an obstetrical procedure (O86.04). Use an additional code to identify the infectious agent. If the patient has severe sepsis, the appropriate code from subcategory R65.2 should also be assigned with the additional code(s) for any acute organ dysfunction.
Sequence blood vessel/nerve injury first (fragment)injury is to the blood vessels or nerves, that injury should be sequenced first.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026