N85.A

Billable

Isthmocele

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A defect or weakness in the lower uterine segment (isthmus) that typically develops after cesarean section, potentially causing abnormal bleeding or pregnancy complications.

Coding Tips

•Document the relationship to prior cesarean delivery, as this is the primary risk factor and relevant for clinical management
•Verify if the patient is symptomatic or if this is an incidental finding, as this affects treatment decisions

Excludes 1 — Do NOT 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-)

Code Hierarchy

└N85Other noninflammatory disorders of uterus, except cervix └N85.AIsthmocele

└N85.AIsthmocele