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  6. 2024 ICD-10-CM Code S56.5
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code S56.5

Injury of other extensor muscle, fascia and tendon at forearm level

ICD-10-CM Code:
S56.5
ICD-10 Code for:
Injury of extn musc/fasc/tend at forearm 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 elbow and forearm
      (S50-S59)
      • Injury of muscle, fascia and tendon at forearm level
        (S56)

S56.5 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 other extensor muscle, fascia and tendon at forearm 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 extn musc/fasc/tend at forearm level

Non-specific codes like S56.5 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 extn musc/fasc/tend at forearm level:

  • S56.50 for Unspecified injury of other extensor muscle, fascia and tendon at forearm level - NON-BILLABLE CODE

  • S56.501 for Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm - NON-BILLABLE CODE

  • Use S56.501A for initial encounter - BILLABLE CODE

  • Use S56.501D for subsequent encounter - BILLABLE CODE

  • Use S56.501S for sequela - BILLABLE CODE

  • S56.502 for Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm - NON-BILLABLE CODE

  • Use S56.502A for initial encounter - BILLABLE CODE

  • Use S56.502D for subsequent encounter - BILLABLE CODE

  • Use S56.502S for sequela - BILLABLE CODE

  • S56.509 for Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm - NON-BILLABLE CODE

  • Use S56.509A for initial encounter - BILLABLE CODE

  • Use S56.509D for subsequent encounter - BILLABLE CODE

  • Use S56.509S for sequela - BILLABLE CODE

  • S56.51 for Strain of other extensor muscle, fascia and tendon at forearm level - NON-BILLABLE CODE

  • S56.511 for Strain of other extensor muscle, fascia and tendon at forearm level, right arm - NON-BILLABLE CODE

  • Use S56.511A for initial encounter - BILLABLE CODE

  • Use S56.511D for subsequent encounter - BILLABLE CODE

  • Use S56.511S for sequela - BILLABLE CODE

  • S56.512 for Strain of other extensor muscle, fascia and tendon at forearm level, left arm - NON-BILLABLE CODE

  • Use S56.512A for initial encounter - BILLABLE CODE

  • Use S56.512D for subsequent encounter - BILLABLE CODE

  • Use S56.512S for sequela - BILLABLE CODE

  • S56.519 for Strain of other extensor muscle, fascia and tendon at forearm level, unspecified arm - NON-BILLABLE CODE

  • Use S56.519A for initial encounter - BILLABLE CODE

  • Use S56.519D for subsequent encounter - BILLABLE CODE

  • Use S56.519S for sequela - BILLABLE CODE

  • S56.52 for Laceration of other extensor muscle, fascia and tendon at forearm level - NON-BILLABLE CODE

  • S56.521 for Laceration of other extensor muscle, fascia and tendon at forearm level, right arm - NON-BILLABLE CODE

  • Use S56.521A for initial encounter - BILLABLE CODE

  • Use S56.521D for subsequent encounter - BILLABLE CODE

  • Use S56.521S for sequela - BILLABLE CODE

  • S56.522 for Laceration of other extensor muscle, fascia and tendon at forearm level, left arm - NON-BILLABLE CODE

  • Use S56.522A for initial encounter - BILLABLE CODE

  • Use S56.522D for subsequent encounter - BILLABLE CODE

  • Use S56.522S for sequela - BILLABLE CODE

  • S56.529 for Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified arm - NON-BILLABLE CODE

  • Use S56.529A for initial encounter - BILLABLE CODE

  • Use S56.529D for subsequent encounter - BILLABLE CODE

  • Use S56.529S for sequela - BILLABLE CODE

  • S56.59 for Other injury of other extensor muscle, fascia and tendon at forearm level - NON-BILLABLE CODE

  • S56.591 for Other injury of other extensor muscle, fascia and tendon at forearm level, right arm - NON-BILLABLE CODE

  • Use S56.591A for initial encounter - BILLABLE CODE

  • Use S56.591D for subsequent encounter - BILLABLE CODE

  • Use S56.591S for sequela - BILLABLE CODE

  • S56.592 for Other injury of other extensor muscle, fascia and tendon at forearm level, left arm - NON-BILLABLE CODE

  • Use S56.592A for initial encounter - BILLABLE CODE

  • Use S56.592D for subsequent encounter - BILLABLE CODE

  • Use S56.592S for sequela - BILLABLE CODE

  • S56.599 for Other injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm - NON-BILLABLE CODE

  • Use S56.599A for initial encounter - BILLABLE CODE

  • Use S56.599D for subsequent encounter - BILLABLE CODE

  • Use S56.599S for sequela - BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Injury of muscle, fascia and tendon at forearm level (S56). Use the following options for the aplicable episode of care:

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

Patient Education


Arm Injuries and Disorders

Of the 206 bones in your body, three of them are in your arm: the humerus, radius, and ulna. Your arms are also made up of muscles, joints, tendons, and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall, or an accident.

Types of arm injuries include :

  • Tendinitis and bursitis
  • Sprains
  • Dislocations
  • Fractures (broken bones)
  • Nerve problems
  • Osteoarthritis

You may also have problems or injure specific parts of your arm, such as your hand, wrist, elbow, or shoulder.


[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.