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  6. 2024 ICD-10-CM Code S86
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code S86

Injury of muscle, fascia and tendon at lower leg level

ICD-10-CM Code:
S86
ICD-10 Code for:
Injury of muscle, fascia and tendon at lower leg level
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Injuries to the knee and lower leg
      (S80-S89)
      • Injury of muscle, fascia and tendon at lower leg level
        (S86)

S86 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of injury of muscle, fascia and tendon at lower leg level. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Injury of muscle, fascia and tendon at lower leg level

Non-specific codes like S86 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for injury of muscle, fascia and tendon at lower leg level:

  • S86.0 for Injury of Achilles tendon - NON-BILLABLE CODE

  • S86.00 for Unspecified injury of Achilles tendon - NON-BILLABLE CODE

  • S86.01 for Strain of Achilles tendon - NON-BILLABLE CODE

  • S86.02 for Laceration of Achilles tendon - NON-BILLABLE CODE

  • S86.09 for Other specified injury of Achilles tendon - NON-BILLABLE CODE

  • S86.1 for Injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.10 for Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.11 for Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.12 for Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.19 for Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.2 for Injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.20 for Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.21 for Strain of muscle(s) and tendon(s) of anterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.22 for Laceration of muscle(s) and tendon(s) of anterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.29 for Other injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level - NON-BILLABLE CODE

  • S86.3 for Injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level - NON-BILLABLE CODE

  • S86.30 for Unspecified injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level - NON-BILLABLE CODE

  • S86.31 for Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level - NON-BILLABLE CODE

  • S86.32 for Laceration of muscle(s) and tendon(s) of peroneal muscle group at lower leg level - NON-BILLABLE CODE

  • S86.39 for Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level - NON-BILLABLE CODE

  • S86.8 for Injury of other muscles and tendons at lower leg level - NON-BILLABLE CODE

  • S86.80 for Unspecified injury of other muscles and tendons at lower leg level - NON-BILLABLE CODE

  • S86.81 for Strain of other muscles and tendons at lower leg level - NON-BILLABLE CODE

  • S86.82 for Laceration of other muscles and tendons at lower leg level - NON-BILLABLE CODE

  • S86.89 for Other injury of other muscles and tendons at lower leg level - NON-BILLABLE CODE

  • S86.9 for Injury of unspecified muscle and tendon at lower leg level - NON-BILLABLE CODE

  • S86.90 for Unspecified injury of unspecified muscle and tendon at lower leg level - NON-BILLABLE CODE

  • S86.91 for Strain of unspecified muscle and tendon at lower leg level - NON-BILLABLE CODE

  • S86.92 for Laceration of unspecified muscle and tendon at lower leg level - NON-BILLABLE CODE

  • S86.99 for Other injury of unspecified muscle and tendon at lower leg level - NON-BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Injury of muscle, fascia and tendon at lower leg level (S86). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • any associated open wound S81

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • injury of muscle, fascia and tendon at ankle S96
  • injury of patellar ligament tendon S76.1
  • sprain of joints and ligaments of knee S83

7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • The appropriate 7th character is to be added to each code from category S86

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient Education


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).

These injuries can affect the entire leg, or just the foot, ankle, knee, or hip. Certain diseases also lead to leg problems. For example, knee osteoarthritis, common in older people, can cause pain and limited motion. Problems in your veins in your legs can lead to varicose veins or deep vein thrombosis.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.