U.S. ICD-10-CM · FY 2027

N10 ICD-10-CM Code: Acute pyelonephritis

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

Code definition

Official description

N10

Acute pyelonephritis

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

Classification

Where N10 sits

  1. 1

    Chapter 14

    Diseases of the genitourinary system (N00-N99)

  2. 2

    Section

    Renal tubulo-interstitial diseases (N10-N16)

  3. 3

    Category N10

    Acute pyelonephritis

  4. 4

    Code N10

    Acute pyelonephritis

Documentation details

Notes for this code

Inclusion terms

  • Acute infectious interstitial nephritis
  • Acute pyelitis
  • Acute tubulo-interstitial nephritis
  • Hemoglobin nephrosis
  • Myoglobin nephrosis

Code first

No “code first” instruction is listed for N10.

Use additional code

  • code (B95-B97), to identify infectious agent.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for N10.

Excludes2

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

No Excludes2 note is listed for N10.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code N10 mean?

N10 is the FY 2027 U.S. ICD-10-CM code for “Acute pyelonephritis.”

Is N10 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, N10 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 N10 located in ICD-10-CM?

N10 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Renal tubulo-interstitial diseases (N10-N16) (N10–N16), under category N10, Acute pyelonephritis.

What coding notes are listed for N10?

Its listed inclusion terms are Acute infectious interstitial nephritis; Acute pyelitis; Acute tubulo-interstitial nephritis; Hemoglobin nephrosis; Myoglobin nephrosis. No code-first instruction is listed. Additional-code instructions: code (B95-B97), to identify infectious agent.. No Excludes1 note is listed. No Excludes2 note is listed.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

Try for free

  • No credit card required

  • Cancel anytime