2024 ICD-10-CM Diagnosis Code S56.12

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

ICD-10-CM Code:
S56.12
ICD-10 Code for:
Lacerat 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)

S56.12 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of laceration 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 S56.12 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 Lacerat flexor musc/fasc/tend and unsp finger at forarm lv

Non-specific codes like S56.12 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 lacerat flexor musc/fasc/tend and unsp finger at forarm lv:

  • S56.121 for Laceration of flexor muscle, fascia and tendon of right index finger at forearm level - NON-BILLABLE CODE

  • Use S56.121A for initial encounter - BILLABLE CODE

  • Use S56.121D for subsequent encounter - BILLABLE CODE

  • Use S56.121S for sequela - BILLABLE CODE

  • S56.122 for Laceration of flexor muscle, fascia and tendon of left index finger at forearm level - NON-BILLABLE CODE

  • Use S56.122A for initial encounter - BILLABLE CODE

  • Use S56.122D for subsequent encounter - BILLABLE CODE

  • Use S56.122S for sequela - BILLABLE CODE

  • S56.123 for Laceration of flexor muscle, fascia and tendon of right middle finger at forearm level - NON-BILLABLE CODE

  • Use S56.123A for initial encounter - BILLABLE CODE

  • Use S56.123D for subsequent encounter - BILLABLE CODE

  • Use S56.123S for sequela - BILLABLE CODE

  • S56.124 for Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level - NON-BILLABLE CODE

  • Use S56.124A for initial encounter - BILLABLE CODE

  • Use S56.124D for subsequent encounter - BILLABLE CODE

  • Use S56.124S for sequela - BILLABLE CODE

  • S56.125 for Laceration of flexor muscle, fascia and tendon of right ring finger at forearm level - NON-BILLABLE CODE

  • Use S56.125A for initial encounter - BILLABLE CODE

  • Use S56.125D for subsequent encounter - BILLABLE CODE

  • Use S56.125S for sequela - BILLABLE CODE

  • S56.126 for Laceration of flexor muscle, fascia and tendon of left ring finger at forearm level - NON-BILLABLE CODE

  • Use S56.126A for initial encounter - BILLABLE CODE

  • Use S56.126D for subsequent encounter - BILLABLE CODE

  • Use S56.126S for sequela - BILLABLE CODE

  • S56.127 for Laceration of flexor muscle, fascia and tendon of right little finger at forearm level - NON-BILLABLE CODE

  • Use S56.127A for initial encounter - BILLABLE CODE

  • Use S56.127D for subsequent encounter - BILLABLE CODE

  • Use S56.127S for sequela - BILLABLE CODE

  • S56.128 for Laceration of flexor muscle, fascia and tendon of left little finger at forearm level - NON-BILLABLE CODE

  • Use S56.128A for initial encounter - BILLABLE CODE

  • Use S56.128D for subsequent encounter - BILLABLE CODE

  • Use S56.128S for sequela - BILLABLE CODE

  • S56.129 for Laceration of flexor muscle, fascia and tendon of unspecified finger at forearm level - NON-BILLABLE CODE

  • Use S56.129A for initial encounter - BILLABLE CODE

  • Use S56.129D for subsequent encounter - BILLABLE CODE

  • Use S56.129S 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]

Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.

Wounds are injuries that break the skin or other body tissues. They include cuts, scrapes, scratches, and punctured skin. They often happen because of an accident, but surgery, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but it is important to clean them. Serious and infected wounds may require first aid followed by a visit to your doctor. You should also seek attention if the wound is deep, you cannot close it yourself, you cannot stop the bleeding or get the dirt out, or it does not heal.

Other common types of injuries include:

  • Animal bites
  • Bruises
  • Burns
  • Dislocations
  • Electrical injuries
  • Fractures (broken bones)
  • Sprains and strains

[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.