N85.A – Isthmocele

ICD-10-CM 2027 diagnosis code · Noninflammatory disorders of female genital tract

Billable code

ICD-10-CM code N85.A

Code: N85.A (claims format: N85A)
Description: Isthmocele
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N80-N98 Noninflammatory disorders of female genital tract
Parent codes: N85

Notes for N85.A

Applicable to:

Isthmocele (non-pregnant state)

Excludes1 (not coded here):

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-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

N85 – Other noninflammatory disorders of uterus, except cervix

Excludes1 (not coded here):

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

Index terms for N85.A

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in N85

N85.0 – Endometrial hyperplasiaHeader
N85.2 – Hypertrophy of uterusBillable
N85.3 – Subinvolution of uterusBillable
N85.4 – Malposition of uterusBillable
N85.5 – Inversion of uterusBillable
N85.6 – Intrauterine synechiaeBillable
N85.7 – HematometraBillable
N85.8 – Other specified noninflammatory disorders of uterusBillable
N85.9 – Noninflammatory disorder of uterus, unspecifiedBillable

Frequently asked questions

What is ICD-10 code N85.A?

N85.A is the ICD-10-CM code for isthmocele, in the block N80-N98 (Noninflammatory disorders of female genital tract).

Is N85.A a billable code?

Yes. N85.A is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N85.A belong to?

It belongs to category N85 – Other noninflammatory disorders of uterus, except cervix.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.