P28.3 vs Z03.83
P28.3 (Primary sleep apnea of newborn) compared with Z03.83 (Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Z03.83 carries an Excludes1 note covering P28.3: “primary sleep apnea of newborn (P28.3-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| P28.3Primary sleep apnea of newborn | Z03.83Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Primary sleep apnea of newborn is a non-billable ICD-10-CM category code (P28.3). | Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out is a billable ICD-10-CM diagnosis code (Z03.83). |
| Includes | Sleep apnea of newborn NOS | Encounter for observation for apnea alarm without findings Encounter for observation for bradycardia alarm without findings Encounter for observation for malfunction of home cardiorespiratory monitor Encounter for observation for non-specific findings home physiologic monitoring device |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources