R06.81 vs Z03.83
R06.81 (Apnea, not elsewhere classified) 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 R06.81: “apnea NOS (R06.81)”
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
| R06.81Apnea, not elsewhere classified | Z03.83Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Apnea, not elsewhere classified is a billable ICD-10-CM diagnosis code (R06.81). | 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 | Apnea 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