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

Billable ICD-10-CM code, FY2026.

Applies from O86 Other puerperal infections

Excludes2 (not included here)

• infection during labor (O75.3)
• obstetrical tetanus (A34)

Use additional code

• code (B95-B97), to identify infectious agent

Applies from O86.0 Infection of obstetric surgical wound

Applicable to

• Infected cesarean delivery wound following delivery
• Infected perineal repair following delivery

Excludes1 (never code together)

• complications of procedures, not elsewhere classified (T81.4-)
• postprocedural fever NOS (R50.82)
• postprocedural retroperitoneal abscess (K68.11)

MS-DRG index

Defines the logic of DRG(s) 769 in MDC 14.

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

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O86.09

Back-references to O86.0

• Type 2 Excludes: O75.4 Other complications of obstetric surgery and procedures ("infection of obstetrical (surgical) wound (O86.0-)")
• Type 2 Excludes: T81.4 Infection following a procedure ("obstetric surgical wound infection (O86.0-)")

Back-references to O86

• Type 1 Excludes: N71 Inflammatory disease of uterus, except cervix ("infection of uterus following delivery (O85, O86.-)")
• Type 2 Excludes: O75 Other complications of labor and delivery, not elsewhere classified ("puerperal (postpartum) infection (O86.-)")
• Type 2 Excludes: O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium ("puerperal infection (O86.-)")

Diagnosis Index entries for O86.09

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

Nearby codes

• O86.00 Infection of obstetric surgical wound, unspecified
• O86.01 Infection of obstetric surgical wound, superficial incisional site
• O86.02 Infection of obstetric surgical wound, deep incisional site
• O86.03 Infection of obstetric surgical wound, organ and space site
• O86.04 Sepsis following an obstetrical procedure
• O86.09 Infection of obstetric surgical wound, other surgical site (this code)
• O86.1 Other infection of genital tract following delivery
• O86.11 Cervicitis following delivery
• O86.12 Endometritis following delivery
• O86.13 Vaginitis following delivery
• O86.19 Other infection of genital tract following delivery