AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2022 Issue 4; New/Revised ICD-10-CM Codes

Isthmocele

Code N85.A, Isthmocele, was created to identify isthmocele for the gynecologic (non-pregnant) patient population. An isthmocele (cesarean scar defect) is any indentation indicating myometrial discontinuity or a triangular anechoic defect in the anterior uterine wall, at the location of a previous cesarean section scar. It is typically asymptomatic; however, a patient may experience chronic pelvic pain and abnormal or postmenstrual bleeding. Uterine rupture, infertility, scar dehiscence, cesarean scar ectopic pregnancy, and placenta accreta or placenta previa may be complications of an isthmocele. The risk factors for this condition include multiple cesarean sections, retroflexed uterus, failure of...

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