Z34.01 ICD-10-CM Code: Encounter for supervision of normal first pregnancy, first trimester
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Encounter for supervision of normal first pregnancy, first trimester is a billable ICD-10-CM diagnosis code (Z34.01).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z34.01 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- any complication of pregnancy (O00-O9A)
- encounter for pregnancy test (Z32.0-)
- encounter for supervision of high risk pregnancy (O09.-)
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Z34.01 in its code family, with their registry titles.
- Z34 — Encounter for supervision of normal pregnancy
- Z34.0 — Encounter for supervision of normal first pregnancy
- Z34.00 — Encounter for supervision of normal first pregnancy, unspecified trimester
- Z34.02 — Encounter for supervision of normal first pregnancy, second trimester
- Z34.03 — Encounter for supervision of normal first pregnancy, third trimester
- Z34.8 — Encounter for supervision of other normal pregnancy
- Z34.80 — Encounter for supervision of other normal pregnancy, unspecified trimester
- Z34.81 — Encounter for supervision of other normal pregnancy, first trimester
- Z34.82 — Encounter for supervision of other normal pregnancy, second trimester
- Z34.83 — Encounter for supervision of other normal pregnancy, third trimester