Z90.721 — Acquired absence of ovaries, unilateral
Is Z90.721 billable?
Yes — Z90.721 is billable for FY2027. Z90.721 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z90.721 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z90.721 at a glance
| Code | Z90.721 |
|---|---|
| Description | Acquired absence of ovaries, unilateral |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z90.721?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z90.721 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z90.721 group to?
Z90.721 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 Z90.721 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z90.721. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Absence › ovary › unilateral (of) (organ or part) (complete or partial)
- Absence › oviduct › unilateral (of) (organ or part) (complete or partial)
- Status › oophorectomy › unilateral (post)
- Status › salpingo-oophorectomy › unilateral (post)
Excludes1 — never code together — inherited from Z90
The conditions below can never be reported together with Z90.721 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- congenital absence - see Alphabetical Index
Excludes1 — never code together — inherited from Z90.7
The conditions below can never be reported together with Z90.721 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- personal history of sex reassignment (Z87.890-)
Excludes2 — not included here — inherited from Z90
The conditions below are not part of Z90.721, but a patient may have both at the same time. When documentation supports it, Z90.721 and the excluded code may both be reported.
- postprocedural absence of endocrine glands (E89.-)
Excludes2 — not included here — inherited from Z90.7
The conditions below are not part of Z90.721, but a patient may have both at the same time. When documentation supports it, Z90.721 and the excluded code may both be reported.
- female genital mutilation status (N90.81-)
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z90.721 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
How long has Z90.721 existed?
Z90.721 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.