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  6. 2024 ICD-10-CM Code S56.10

2024 ICD-10-CM Diagnosis Code S56.10

Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

ICD-10-CM Code:
S56.10
ICD-10 Code for:
Unsp inj flexor musc/fasc/tend and unsp finger at forarm lv
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)

S56.10 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger 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.

Unspecified diagnosis codes like S56.10 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding Applicable to Unsp inj flexor musc/fasc/tend and unsp finger at forarm lv

Non-specific codes like S56.10 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 unsp inj flexor musc/fasc/tend and unsp finger at forarm lv:

  • S56.101 for Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level - NON-BILLABLE CODE

  • Use S56.101A for initial encounter - BILLABLE CODE

  • Use S56.101D for subsequent encounter - BILLABLE CODE

  • Use S56.101S for sequela - BILLABLE CODE

  • S56.102 for Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level - NON-BILLABLE CODE

  • Use S56.102A for initial encounter - BILLABLE CODE

  • Use S56.102D for subsequent encounter - BILLABLE CODE

  • Use S56.102S for sequela - BILLABLE CODE

  • S56.103 for Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level - NON-BILLABLE CODE

  • Use S56.103A for initial encounter - BILLABLE CODE

  • Use S56.103D for subsequent encounter - BILLABLE CODE

  • Use S56.103S for sequela - BILLABLE CODE

  • S56.104 for Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level - NON-BILLABLE CODE

  • Use S56.104A for initial encounter - BILLABLE CODE

  • Use S56.104D for subsequent encounter - BILLABLE CODE

  • Use S56.104S for sequela - BILLABLE CODE

  • S56.105 for Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level - NON-BILLABLE CODE

  • Use S56.105A for initial encounter - BILLABLE CODE

  • Use S56.105D for subsequent encounter - BILLABLE CODE

  • Use S56.105S for sequela - BILLABLE CODE

  • S56.106 for Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level - NON-BILLABLE CODE

  • Use S56.106A for initial encounter - BILLABLE CODE

  • Use S56.106D for subsequent encounter - BILLABLE CODE

  • Use S56.106S for sequela - BILLABLE CODE

  • S56.107 for Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level - NON-BILLABLE CODE

  • Use S56.107A for initial encounter - BILLABLE CODE

  • Use S56.107D for subsequent encounter - BILLABLE CODE

  • Use S56.107S for sequela - BILLABLE CODE

  • S56.108 for Unspecified injury of flexor muscle, fascia and tendon of left little finger at forearm level - NON-BILLABLE CODE

  • Use S56.108A for initial encounter - BILLABLE CODE

  • Use S56.108D for subsequent encounter - BILLABLE CODE

  • Use S56.108S for sequela - BILLABLE CODE

  • S56.109 for Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level - NON-BILLABLE CODE

  • Use S56.109A for initial encounter - BILLABLE CODE

  • Use S56.109D for subsequent encounter - BILLABLE CODE

  • Use S56.109S 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

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

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.