ICD-10-CM 2027
ICD-10 code for placental sample encounter
Encounter for antenatal screening, unspecified
From the official ICD-10-CM alphabetic index entry “Encounter (with health service) (for) › placental sample (taken vaginally)”. Page updated September 29, 2026.
About coding placental sample encounter
The ICD-10-CM code for placental sample encounter is Z36.9 (Encounter for antenatal screening, unspecified).
Within Z36, choose Z36.9 (antenatal screening, unspecified) only when documentation doesn't support a more specific option: antenatal screening for chromosomal anomalies (Z36.0), antenatal screening for raised alphafetoprotein level (Z36.1), other antenatal screening follow-up (Z36.2), antenatal screening for malformations (Z36.3), antenatal screening for fetal growth retardation (Z36.4), antenatal screening for isoimmunization (Z36.5) and other antenatal screening (Z36.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about placental sample encounter ICD-10 codes
What is the ICD-10 code for placental sample encounter?
- Z36.9 — Encounter for antenatal screening, unspecified.
Is Z36.9 billable?
- Yes. Z36.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z36.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Z36.9 as a principal diagnosis.
Is Z36.9 a CC or MCC?
- No. Z36.9 is neither a CC nor an MCC under MS-DRG v44.0.