R18 vs R30
R18 (Ascites) compared with R30 (Pain associated with micturition), 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. R18 carries an Excludes2 note covering R30: “signs and symptoms involving the urinary system (R30-R39)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| R18Ascites | R30Pain associated with micturition | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Ascites is a non-billable ICD-10-CM category code (R18). | Pain associated with micturition is a non-billable ICD-10-CM category code (R30). |
| Includes | fluid in peritoneal cavity | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources