2027 ICD-10-CM Diagnosis Code M76.811Anterior tibial syndrome, right leg

ICD-10-CM Codes›M00–M99›M70-M79›M76

ICD-10-CM M76.811
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M76.811 is a billable ICD-10-CM diagnosis code for anterior tibial syndrome, right leg. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 557 through 558. Coders also document this condition as disorder of right tendon of anterior tibial muscle. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified connective tissue disease.

Code Identity

ICD-10-CM Code
M76.811
Billable Status
Yes — Valid for Submission
Code Describes
Anterior tibial syndrome, right leg
Short Description
Anterior tibial syndrome, right leg
Same as the full description in the CMS dataset.
Parent Code
M76.81
Anterior tibial syndrome

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM70-M79Other soft tissue disorders
CategoryM76Enthesopathies, lower limb, excluding foot
This CodeM76.811Anterior tibial syndrome, right leg

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Disorder of right tendon of anterior tibial muscle
  • Disorder of tibialis anterior tendon
  • Inflammation of tendon of right anterior tibial muscle
  • Tendinitis of right foot
  • Tibialis anterior tendinitis
  • Tibialis tendinitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M76.811: its own notes plus those printed at M76 and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From M76 Enthesopathies, lower limb, excluding foot applies to 34 codes
  • bursitis due to use, overuse and pressure (M70.-)
  • enthesopathies of ankle and foot (M77.5-)
From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M76.811, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming M76.811: they are not reported together with it, unless the two conditions are unrelated.

  • M65.2 Calcific tendinitis
    tendinitis as classified in M75-M77 names M75-M77, which includes this code
  • M71 Other bursopathies
    enthesopathies (M76-M77) names M76-M77, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming M76.811: its condition is not part of those codes, and both may be reported when the patient has both.

  • T79.6 Traumatic ischemia of muscle
    anterior tibial syndrome (M76.8) names M76.8, which includes this code
  • M70 Soft tissue disorders related to use, overuse and pressure
    enthesopathies (M76-M77) names M76-M77, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS025
Other specified connective tissue disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Anterior Compartment Syndrome

    rapid swelling, increased tension, pain, and ischemic necrosis of the muscles of the anterior tibial compartment of the leg, often following excessive physical exertion.

Patient EducationClinical

Leg Injuries and Disorders

Your legs are made up of bones, blood vessels, muscles, and other connective tissue. They are important for motion and standing. Playing sports, running, falling, or having an accident can damage your legs. Common leg injuries include sprains and strains, joint dislocations, and fractures (broken bones).

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert M76.811 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
726.72 Tibialis tendinitis
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M76.811Overview

What is the ICD-10 code for anterior tibial syndrome, right leg?

The ICD-10-CM code for anterior tibial syndrome, right leg is M76.811 (sometimes written as M76811). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M76.811 (Anterior tibial syndrome) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report anterior tibial syndrome, right leg on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M76.811 group to?

When anterior tibial syndrome, right leg is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8873 to 1.4883 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M76.811?

Under the General Equivalence Mappings, anterior tibial syndrome, right leg converts to ICD-9-CM 726.72 (tibialis tendinitis). The mapping is approximate, so confirm the match fits the documentation.