N23 vs N29
N23 (Unspecified renal colic) compared with N29 (Other disorders of kidney and ureter in diseases classified elsewhere), 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. N29 carries an Excludes2 note covering N23: “disorders of kidney and ureter with urolithiasis (N20-N23)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N23Unspecified renal colic | N29Other disorders of kidney and ureter in diseases classified elsewhere | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Unspecified renal colic is a billable ICD-10-CM diagnosis code (N23). | Other disorders of kidney and ureter in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (N29). |
| Code first | — | underlying disease, such as: amyloidosis (E85.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources