ICD-10-CM 2027
ICD-10 code for obstetrical tetanus
Obstetrical tetanus
From the official ICD-10-CM alphabetic index entry “Tetanus, tetanic (cephalic) (convulsions) › obstetrical”. Page updated September 29, 2026.
About coding obstetrical tetanus
The ICD-10-CM code for obstetrical tetanus is A34 (Obstetrical tetanus).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 769 (Postpartum and Post Abortion Diagnoses with O.R. Procedures, relative weight 1.6673) and DRG 776 (Postpartum and Post Abortion Diagnoses without O.R. Procedures, relative weight 0.6721), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
The Medicare Code Editor treats this as a maternity diagnosis, expected only for patients age 9 through 64.
Common questions about obstetrical tetanus ICD-10 codes
What is the ICD-10 code for obstetrical tetanus?
- A34 — Obstetrical tetanus.
Is A34 billable?
- Yes. A34 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A34 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A34 as a principal diagnosis.
Is A34 a CC or MCC?
- A34 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.