2026 ICD-10-CM Diagnosis Code Z31.49Encounter for other procreative investigation and testing

ICD-10-CM Codes›Z00–Z99›Z30-Z39›Z31

ICD-10-CM Z31.49
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z31.49 is a billable ICD-10-CM diagnosis code for encounter for other procreative investigation and testing. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contraceptive and procreative management.

Code Identity

ICD-10-CM Code
Z31.49
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for other procreative investigation and testing
Short Description
Encounter for other procreative investigation and testing
Same as the full description in the CMS dataset.
Parent Code
Z31.4
Encounter for procreative investigation and testing

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 CodeZ31.49Encounter for other procreative investigation and testing

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z31.49.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z31.49 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

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.

    • Test, tests, testing(for)
      • procreative

Clinical ClassificationClinical

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

CCSR FAC013
Contraceptive and procreative management
Default principal diagnosis: inpatient No · outpatient Yes

Convert Z31.49 to ICD-9-CMHistory

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

ICD-9-CM
V26.29 Investigate & test NEC
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 Z31.49Overview

Is Z31.49 (Encounter for procreative investigation and testing) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for other procreative investigation and testing on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z31.49 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for other procreative investigation and testing describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z31.49 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 other procreative investigation and testing on inpatient claims.

What is the ICD-9 equivalent of Z31.49?

Under the General Equivalence Mappings, encounter for other procreative investigation and testing converts to ICD-9-CM V26.29 (investigate & test NEC). The mapping is a direct match.