Z05 vs Z36
Z05 (Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out) compared with Z36 (Encounter for antenatal screening of mother), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. Z05 carries an Excludes2 note covering Z36: “examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Z05Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out | Z36Encounter for antenatal screening of mother | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out is a non-billable ICD-10-CM category code (Z05). | Encounter for antenatal screening of mother is a non-billable ICD-10-CM category code (Z36). |
| Includes | This category is to be used for newborns, within the neonatal period (the first 28 days of life), who are suspected of having an abnormal condition, but without signs or symptoms, and which, after examination and observation, is ruled out. | Encounter for placental sample (taken vaginally) Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease. |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources