What does ICD-10 code M89.76 mean?

ICD-10 code M89.76 is the standardized code used for major osseous defect, lower leg in medical records and coding systems.

When is ICD-10 code M89.76 used?

Doctors, hospitals, and insurers may use ICD-10 code M89.76 when recording major osseous defect, lower leg in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code M89.76 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code M89.76: Major osseous defect, lower leg

Name: ICD-10 Code M89.76: Major osseous defect, lower leg
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:24:44.552Z

M89.76 is an ICD-10 diagnosis entry used to group records related to Major osseous defect, lower leg. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

When is it used?

May be used when a clinician documents major osseous defect, lower leg in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

13Diseases of the musculoskeletal system and connective tissue (M00-M99)

block

M80-M94Osteopathies and chondropathies

block

M86-M90Other osteopathies

Official coding notes

Inclusion terms

Major osseous defect of fibula and tibia

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

Orthopedic SpecialistRheumatologist

Sibling codes

M89.70Major osseous defect, unspecified sitebillable M89.71Major osseous defect, shoulder region M89.72Major osseous defect, humerus M89.73Major osseous defect, forearm M89.74Major osseous defect, hand M89.75Major osseous defect, pelvic region and thigh M89.77Major osseous defect, ankle and foot M89.78Major osseous defect, other sitebillable M89.79Major osseous defect, multiple sitesbillable

Coding guidelines

Common synonyms

Major osseous defect, lower leg

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.