J45 vs R06.2
J45 (Asthma) compared with R06.2 (Wheezing), 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. J45 carries an Excludes1 note covering R06.2: “wheezing NOS (R06.2)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. R06.2 carries an Excludes1 note covering J45: “Asthma (J45.-)”
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
| J45Asthma | R06.2Wheezing | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | J00-J99 — Diseases of the Respiratory System (J00-J99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Asthma is a non-billable ICD-10-CM category code (J45). | Wheezing is a billable ICD-10-CM diagnosis code (R06.2). |
| Includes | allergic (predominantly) asthma allergic bronchitis NOS allergic rhinitis with asthma atopic asthma | — |
| Use additional code | code to identify: eosinophilic asthma (J82.83) exposure to environmental tobacco smoke (Z77.22) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources