Is N22 a billable ICD-10-CM code?

Yes. N22 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does N22 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Urolithiasis (N20-N23).

N22

N22 — Calculus of urinary tract in diseases classified elsewhere

Billable / specific codeICD-10-CM

N22 is a billable, specific ICD-10-CM code for calculus of urinary tract in diseases classified elsewhere. It is valid for submission on a claim.

Code first

The underlying condition must be sequenced before this code.

underlying disease, such as:
gout (M1A.-, M10.-)
schistosomiasis (B65.0-B65.9)

Risk adjustment

N22 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

N22 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A55336Billing and Coding: Retroperitoneal Ultrasound
A56421Billing and Coding: CT of the Abdomen and Pelvis
A57718Billing and Coding: Vitamin D Assay Testing
A57736Billing and Coding: Vitamin D Assay Testing

Questions about N22

Is N22 a billable ICD-10-CM code?: Yes. N22 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N22 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Urolithiasis (N20-N23).