U.S. ICD-10-CM · FY 2027

K42 ICD-10-CM Code: Umbilical hernia

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

Code definition

Official description

K42

Umbilical hernia

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

Classification

Where K42 sits

  1. 1

    Chapter 11

    Diseases of the digestive system (K00-K95)

  2. 2

    Section

    Hernia (K40-K46)

  3. 3

    Category K42

    Umbilical hernia

  4. 4

    Code K42

    Umbilical hernia

More specific choices

Codes under K42

K42 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for K42.

Code first

No “code first” instruction is listed for K42.

Use additional code

No “use additional code” instruction is listed for K42.

Excludes1

Conditions that should not be reported together with this code.

  • omphalocele (Q79.2)

Excludes2

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

No Excludes2 note is listed for K42.

Transparency

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code K42 mean?

K42 is the FY 2027 U.S. ICD-10-CM code for “Umbilical hernia.”

Is K42 a billable or specific ICD-10-CM code?

No. K42 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is K42 located in ICD-10-CM?

K42 is listed in Chapter 11, Diseases of the digestive system (K00-K95), within Hernia (K40-K46) (K40–K46), under category K42, Umbilical hernia.

What coding notes are listed for K42?

No inclusion terms are listed for K42 in this reference record. No code-first instruction is listed. Excludes1 notes: omphalocele (Q79.2). No Excludes2 note is listed.

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