Weeks of gestation Z3A

The ICD10 code for the diagnosis "Weeks of gestation" is "Z3A". Z3A is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

• Z3A should not be used for reimbursement purposes. Please select a more specific diagnosis below.
• The 2019 edition of ICD-10-CM Z3A became effective on October 1, 2018.
• This is the American ICD-10-CM version of Z3A - other international versions of ICD-10 Z3A may differ.

Codes: = Billable

• Z3A Weeks of gestation
  • Z3A.0 Weeks of gestation of pregnancy, unspecified or less than 10 weeks
  • Z3A.1 Weeks of gestation of pregnancy, weeks 10-19
  • Z3A.2 Weeks of gestation of pregnancy, weeks 20-29
  • Z3A.3 Weeks of gestation of pregnancy, weeks 30-39
  • Z3A.4 Weeks of gestation of pregnancy, weeks 40 or greater

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.