2026 ICD-10-CM Diagnosis Code Z31.0Encounter for reversal of previous sterilization

ICD-10-CM Codes›Z00–Z99›Z30-Z39›Z31

ICD-10-CM Z31.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z31.0 is a billable ICD-10-CM diagnosis code for encounter for reversal of previous sterilization. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 729 through 730, 742 through 743, 760 through 761. The code is exempt from POA reporting. Coders also document this condition as reversal of sterilization done. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contraceptive and procreative management.

Code Identity

ICD-10-CM Code
Z31.0
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for reversal of previous sterilization
Short Description
Encounter for reversal of previous sterilization
Same as the full description in the CMS dataset.
Parent Code
Z31
Encounter for procreative management

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ30-Z39Persons encountering health services in circumstances related to reproduction
CategoryZ31Encounter for procreative management
This CodeZ31.0Encounter for reversal of previous sterilization

Present on Admission (POA)Billing

Z31.0 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Reversal of sterilization done

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Admission(for)
      • poststerilization (for restoration)
    • Admission(for)
      • restoration of organ continuity (poststerilization)
    • Admission(for)
      • tuboplasty following previous sterilization
    • Admission(for)
      • vasoplasty following previous sterilization
    • Restoration(of)
      • organ continuity from previous sterilization (tuboplasty) (vasoplasty)
    • Tuboplasty, after previous sterilization
    • Vasoplasty, after previous sterilization

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC013
Contraceptive and procreative management
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Tubal Ligation

Tubal ligation (getting your "tubes tied") is a type of surgery. It prevents a woman from getting pregnant. It is a permanent form of birth control, and is effective right away.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z31.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V26.0 Tuboplasty or vasoplasty
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z31.0Overview

Is Z31.0 (Encounter for procreative management) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for reversal of previous sterilization on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Z31.0 group to?

When encounter for reversal of previous sterilization is the principal diagnosis on an inpatient stay, it groups to MS-DRG 729, 730, 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Z31.0 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for encounter for reversal of previous sterilization on inpatient claims.

What is the ICD-9 equivalent of Z31.0?

Under the General Equivalence Mappings, encounter for reversal of previous sterilization converts to ICD-9-CM V26.0 (tuboplasty or vasoplasty). The mapping is a direct match.