N85.A Isthmocele

Billable ICD-10-CM code, FY2026.

Applicable to

• Isthmocele (non-pregnant state)

Excludes1 (never code together)

• maternal care for cesarean scar defect (isthmocele) (O34.22)

Code also

• any associated conditions such as:
• abnormal uterine and vaginal bleeding, unspecified (N93.9)
• female infertility of uterine origin (N97.2)
• pelvic and perineal pain (R10.2-)

Applies from N85 Other noninflammatory disorders of uterus, except cervix

Excludes1 (never code together)

• endometriosis (N80.-)
• inflammatory diseases of uterus (N71.-)
• noninflammatory disorders of cervix, except malposition (N86-N88)
• polyp of corpus uteri (N84.0)
• uterine prolapse (N81.-)

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Diagnosis Index entries for N85.A

• Cesarean delivery, previous, affecting management of pregnancy › isthmocele (non-pregnant state)
• Cesarean delivery, previous, affecting management of pregnancy › scar › defect (non-pregnant state)

Nearby codes

• N85.5 Inversion of uterus
• N85.6 Intrauterine synechiae
• N85.7 Hematometra
• N85.8 Other specified noninflammatory disorders of uterus
• N85.9 Noninflammatory disorder of uterus, unspecified
• N85.A Isthmocele (this code)