Z33.3Pregnant state, gestational carrier

Z33.3 is the ICD-10-CM diagnosis code for Pregnant state, gestational carrier. It belongs to category Z33 (Pregnant state), block Z30-Z39 (persons encountering health services in circumstances related to reproduction) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Z33 (Pregnant state), Z33.3 is specifically for Pregnant state, gestational carrier. Related codes cover incidental (Z33.1) and encounter for elective termination of pregnancy (Z33.2).

Don't report Z33.3 together with the conditions in its Excludes1 note: encounter for procreative management and counseling for gestational carrier (Z31.7).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

The Medicare Code Editor treats this as a maternity diagnosis, expected only for patients age 9 through 64.

It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as V22.2 (Pregnant state, incidental).