N85.A
Billable codeIsthmocele
The ICD-10 code for isthmocele is N85.A.
Clinical notes
Code also
Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- maternal care for cesarean scar defect (isthmocele) (O34.22)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Isthmocele (non-pregnant state)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- N85.0Endometrial hyperplasianon-billable header
- N85.2Hypertrophy of uterus
- N85.3Subinvolution of uterus
- N85.4Malposition of uterus
- N85.5Inversion of uterus
- N85.6Intrauterine synechiae
- N85.7Hematometra
- N85.8Other specified noninflammatory disorders of uterus
- N85.9Noninflammatory disorder of uterus, unspecified
- N85.AIsthmocele
Associated MS-DRGs
N85.A can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 729Other Male Reproductive System Diagnoses with CC/MCC
- DRG 730Other Male Reproductive System Diagnoses without CC/MCC
- DRG 742Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC
- DRG 743Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC
- DRG 760Menstrual and Other Female Reproductive System Disorders with CC/MCC
- DRG 761Menstrual and Other Female Reproductive System Disorders without CC/MCC