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ICD-10-CM Codes
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Z00-Z99
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Z30-Z3A
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Z3A-
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2023 ICD-10-CM Diagnosis Code Z3A
2023 ICD-10-CM Diagnosis Code Z3A
Weeks of gestation
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- Z3A should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2023 edition of ICD-10-CM Z3A became effective on October 1, 2022.
- This is the American ICD-10-CM version of Z3A - other international versions of ICD-10 Z3A may differ.
Code FirstCode First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
The following code(s) above
Z3A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
Z3A:
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to Z3A:
ICD-10-CM Codes Adjacent To Z3A
Z36.82 Encounter for antenatal screening for nuchal translucency
Z36.83 Encounter for fetal screening for congenital cardiac abnormalities
Z36.84 Encounter for antenatal screening for fetal lung maturity
Z36.85 Encounter for antenatal screening for Streptococcus B
Z36.86 Encounter for antenatal screening for cervical length
Z36.87 Encounter for antenatal screening for uncertain dates
Z36.88 Encounter for antenatal screening for fetal macrosomia
Z36.89 Encounter for other specified antenatal screening
Z36.8A Encounter for antenatal screening for other genetic defects
Z36.9 Encounter for antenatal screening, unspecified
Z3A
Weeks of gestation
Z3A.0 Weeks of gestation of pregnancy, unspecified or less than 10 weeks
Z3A.00 Weeks of gestation of pregnancy not specified
Z3A.01 Less than 8 weeks gestation of pregnancy
Z3A.08 8 weeks gestation of pregnancy
Z3A.09 9 weeks gestation of pregnancy
Z3A.1 Weeks of gestation of pregnancy, weeks 10-19
Z3A.10 10 weeks gestation of pregnancy
Z3A.11 11 weeks gestation of pregnancy
Z3A.12 12 weeks gestation of pregnancy
Z3A.13 13 weeks gestation of pregnancy
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.