N20-N23 — Urolithiasis
ICD-10-CM codes N20-N23 cover urolithiasis, within diseases of the genitourinary system. The block holds 12 codes across 4 categories, of which 10 are billable and 2 are header codes that cannot be submitted on a claim.
What else to watch in N20-N23
- 6 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.