O86.09 Infection of obstetric surgical wound, other surgical site

The ICD-10-CM code for Infection of obstetric surgical wound, other surgical site is O86.09 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

15: Pregnancy, childbirth and the puerperium (O00-O9A)

Section

O85-O92: Complications predominantly related to the puerperium (O85-O92)

Category O86

22 codes (17 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O86.09:

• Infection, infected, infective (opportunistic) › perineal repair (puerperal)
• Infection, infected, infective (opportunistic) › episiotomy (puerperal)
• Infection, infected, infective (opportunistic) › obstetrical surgical wound (puerperal) › surgical site specified NEC
• Complication (s) (from) (of) › perineal repair (obstetrical) NEC › infection (following delivery)
• Puerperal, puerperium (complicated by, complications) › infection › genital tract NEC › obstetric surgical wound

U.S. Hospital Utilization

• An estimated 550 U.S. inpatient stays in 2023 included O86.09 among the documented diagnoses.
• 330 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

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.

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
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)