ICD-10 Diagnosis Code Z33.1

Pregnant state, incidental

Diagnosis Code Z33.1

ICD-10: Z33.1
Short Description: Pregnant state, incidental
Long Description: Pregnant state, incidental
This is the 2017 version of the ICD-10-CM diagnosis code Z33.1

Code Classification
  • Factors influencing health status and contact with health services
    • Persons encountering health services in circumstances related to reproduction (Z30-Z39)
      • Pregnant state (Z33)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Maternity diagnoses Additional informationCallout TooltipMaternity diagnoses
Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Diagnoses for females only Additional informationCallout TooltipDiagnoses for females only
Diagnoses for females only.

Unacceptable principal diagnosis Additional informationCallout TooltipUnacceptable 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.

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Abdominal pain in early pregnancy
  • Abdominal pain in pregnancy
  • Antenatal ultrasound confirms intrauterine pregnancy
  • First trimester pregnancy
  • Gravida 2
  • Intends to continue pregnancy
  • Number of pregnancies, currently pregnant
  • Patient currently pregnant
  • Precocious pregnancy
  • Pregnant - blood test confirms
  • Pregnant - on abdominal palpation
  • Pregnant - on history
  • Pregnant - planned
  • Pregnant - urine test confirms
  • Pregnant - vaginal examination confirms
  • Previous pregnancies 10
  • Previous pregnancies 2
  • Previous pregnancies 8
  • Previous pregnancies 9
  • Previous pregnancies more than 10
  • Surrogate pregnancy
  • Third trimester pregnancy
  • Third trimester pregnancy less than 36 weeks
  • Viable pregnancy

Index of Diseases and Injuries
References found for the code Z33.1 in the Index of Diseases and Injuries:

Replaced Code Additional informationCallout TooltipReplaced Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2016. This codes was replaced for the FY 2017 (October 1, 2016-September 30, 2017).

This code was replaced in the 2017 ICD-10 code set with the code(s) listed below.
  • Z33.3 - Pregnant state, gestational carrier

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