U.S. ICD-10-CM · FY 2027

M77.1 ICD-10-CM Code: Lateral epicondylitis

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

Code definition

Official description

M77.1

Lateral epicondylitis

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

Classification

Where M77.1 sits

  1. 1

    Chapter 13

    Diseases of the musculoskeletal system and connective tissue (M00-M99)

  2. 2

    Section

    Other soft tissue disorders (M70-M79)

  3. 3

    Category M77

    Other enthesopathies

  4. 4

    Code M77.1

    Lateral epicondylitis

More specific choices

Codes under M77.1

M77.1 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

  • Tennis elbow

Code first

No “code first” instruction is listed for M77.1.

Use additional code

No “use additional code” instruction is listed for M77.1.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for M77.1.

Excludes2

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

No Excludes2 note is listed for M77.1.

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 M77.1 mean?

M77.1 is the FY 2027 U.S. ICD-10-CM code for “Lateral epicondylitis.”

Is M77.1 a billable or specific ICD-10-CM code?

No. M77.1 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 M77.1 located in ICD-10-CM?

M77.1 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Other soft tissue disorders (M70-M79) (M70–M79), under category M77, Other enthesopathies.

What coding notes are listed for M77.1?

Its listed inclusion terms are Tennis elbow. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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