N23 ICD-10-CM Code: Unspecified renal colic

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

N23

Unspecified renal colic

ICD-10-CM diagnosis code · United States clinical modification

Where N23 sits

  1. 1

    Chapter 14

    Diseases of the genitourinary system (N00-N99)

  2. 2

    Section

    Urolithiasis (N20-N23)

  3. 3

    Category N23

    Unspecified renal colic

  4. 4

    Code N23

    Unspecified renal colic

Notes for this code

Inclusion terms

No inclusion terms are listed for N23.

Code first

No “code first” instruction is listed for N23.

Use additional code

No “use additional code” instruction is listed for N23.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for N23.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for N23.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code N23 mean?

N23 is the FY 2027 U.S. ICD-10-CM code for “Unspecified renal colic.”

Is N23 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, N23 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is N23 located in ICD-10-CM?

N23 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Urolithiasis (N20-N23) (N20–N23), under category N23, Unspecified renal colic.

What coding notes are listed for N23?

No inclusion terms are listed for N23 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.