Z33.3
Pregnant state, gestational carrier
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
encounter for procreative management and counseling for gestational carrier (Z31.7)
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.
Official Guidelines for Z33.3
FY 2026 ›Sections that reference Z33.3
- I.C.15.a.1)Codes from chapter 15 and sequencing priorityChapter 15
… Should the provider document that the pregnancy is incidental to the encounter, then code Z33.1, Pregnant state, incidental, should be used in place of any chapter 15 codes. …
- I.C.15.q.1)Abortion with Liveborn FetusChapter 15
When an attempted termination of pregnancy results in a liveborn fetus, assign code Z33.2, Encounter for elective termination of pregnancy and a code from category Z37, Outcome of Delivery.
- I.C.21.c.3)Status
… status See Section I.B.14. for underimmunization documentation by clinicians other than the patient’s provider. Z33.1 Pregnant state, incidental This code is a secondary code only for use when the pregnancy is in no way complicating the reason …
- I.C.21.c.11)Encounters for Obstetrical and Reproductive Services
… should not be assigned for pregnancies with abortive outcomes (categories O00- O08), elective termination of pregnancy (code Z33.2), nor for postpartum conditions, as category Z3A is not applicable to these conditions. …
- I.C.21.c.15)Z Codes That May Only be Principal/First-Listed Diagnosis
… diagnosis Z02 Encounter for administrative examination Z04 Encounter for examination and observation for other reasons Z33.2 Encounter for elective termination of pregnancy Z31.81 Encounter for male factor infertility in female patient Z31.83 …
- I.B.3Code or codes from A00.0 through T88.9, Z00-Z99.8, U00-U85Conventions & general rules
The appropriate code or codes from A00.0 through T88.9, Z00-Z99.8, and U00-U85 must be used to identify diagnoses, symptoms, conditions, problems, complaints or other reason(s) for the …
Showing 6 of 9. Search the guidelines for Z33. Sections whose FY 2026 text names Z33.3, its Z33 category, or a range containing it — the chapter guidance above is the authoritative source.
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