N90.5 — Atrophy of vulva

Billable

Is N90.5 billable?

Yes — N90.5 is billable for FY2027. N90.5 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. N90.5 may be submitted for encounters from October 1, 2026 through September 30, 2027.

N90.5 at a glance

Code	N90.5
Description	Atrophy of vulva
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does N90.5 group to?

N90.5 sits in MDC 13 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

742Uterine and Adnexa Procedures for Non-Malignancy with CC/MCCsurgical
743Uterine and Adnexa Procedures for Non-Malignancy without CC/MCCsurgical

How is N90.5 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to N90.5. They show the wording a clinician may have documented, which often differs from the Tabular description.

Atrophy, atrophic › vulva (of)
Closure › vulva
Occlusion, occluded › vulva
Stenosis, stenotic › vulva (cicatricial)
Stricture › vulva
Atresia, atretic › vulva › acquired

Inclusion terms

Alternative wording in documentation that is classified to N90.5.

Stenosis of vulva

Excludes1 — never code together — inherited from N90

The conditions below can never be reported together with N90.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

anogenital (venereal) warts (A63.0)
carcinoma in situ of vulva (D07.1)
condyloma acuminatum (A63.0)
current obstetric trauma (O70.-, O71.7-O71.8)
inflammation of vulva (N76.-)
severe dysplasia of vulva (D07.1)
vulvar intraepithelial neoplasm III [VIN III] (D07.1)

Excludes2 — not included here — inherited from Chapter 14

The conditions below are not part of N90.5, but a patient may have both at the same time. When documentation supports it, N90.5 and the excluded code may both be reported.

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

How long has N90.5 existed?

N90.5 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.