2027 ICD-10-CM Diagnosis Code Z64.0Problems related to unwanted pregnancy

ICD-10-CM Codes›Z00–Z99›Z55-Z65›Z64

ICD-10-CM Z64.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z64.0 is a billable ICD-10-CM diagnosis code for problems related to unwanted pregnancy. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 770, 779. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as oral contraception - problem. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Socioeconomic/psychosocial factors.

Code Identity

ICD-10-CM Code
Z64.0
Billable Status
Yes — Valid for Submission
Code Describes
Problems related to unwanted pregnancy
Short Description
Problems related to unwanted pregnancy
Same as the full description in the CMS dataset.
Parent Code
Z64
Problems related to certain psychosocial circumstances

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ55-Z65Persons with potential health hazards related to socioeconomic and psychosocial circumstances
CategoryZ64Problems related to certain psychosocial circumstances
This CodeZ64.0Problems related to unwanted pregnancy

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z64.0.

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

Z64.0 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Oral contraception - problem
  • Pregnancy on oral contraceptive
  • Pregnancy unplanned and unwanted
  • Pregnancy unplanned but wanted
  • Psychosocial problems related to unwanted pregnancy
  • Unplanned pregnancy
  • Unplanned pregnancy unknown if child is wanted
  • Unwanted pregnancy
  • Wanted pregnancy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z64.0: its own notes plus those printed at Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

CCSR FAC019
Socioeconomic/psychosocial factors
Default principal diagnosis: inpatient No · outpatient No

Convert Z64.0 to ICD-9-CMHistory

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

ICD-9-CM
V61.6 Illegitimate pregnancy
Approximate The match is approximate rather than exact.
ICD-9-CM
V61.7 Unwanted pregnancy NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z64.0Overview

What is the ICD-10 code for problems related to unwanted pregnancy?

The ICD-10-CM code for problems related to unwanted pregnancy is Z64.0 (sometimes written as Z640). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is Z64.0 (Problems related to certain psychosocial circumstances) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report problems related to unwanted pregnancy on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does Z64.0 group to?

On inpatient claims, problems related to unwanted pregnancy maps to MS-DRG 779, 770, with relative weights from 1.0198 to 1.0987 depending on complications. Higher weights mean higher Medicare reimbursement.

Can Z64.0 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because problems related to unwanted pregnancy describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z64.0 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 problems related to unwanted pregnancy on inpatient claims. The code appears in the Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65) range of the CMS exempt list.