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Z3A.1Non-billableSave

Z3A.1 - Weeks of gestation of pregnancy, weeks 10-19

ICD-10-CM Chapter 21: Factors influencing health status and contact with health services · Z30-Z39 Persons encountering health services in circumstances related to reproduction (Z30-Z39) · Subcategory of Z3A · FY2027

Coding Guidance

Z3A.1 is a non-billable heading. Report one of the 10 more specific codes below.

Includes, Excludes and Coding Notes

Code FirstFrom Z3A

Sequence the underlying condition before this code.

  • obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A)
NotesFrom Z3A

Instructional notes from the ICD-10-CM tabular list.

  • Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known.
NotesFrom Chapter Z00-Z99

Instructional notes from the ICD-10-CM tabular list.

  • 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.

More Specific Codes (10)

Z3A.1010 weeks gestation of pregnancy→Z3A.1111 weeks gestation of pregnancy→Z3A.1212 weeks gestation of pregnancy→Z3A.1313 weeks gestation of pregnancy→Z3A.1414 weeks gestation of pregnancy→Z3A.1515 weeks gestation of pregnancy→Z3A.1616 weeks gestation of pregnancy→Z3A.1717 weeks gestation of pregnancy→Z3A.1818 weeks gestation of pregnancy→Z3A.1919 weeks gestation of pregnancy→