ICD-10 Diagnosis Code S56.509A

Unsp inj extn musc/fasc/tend at forarm lv, unsp arm, init

Diagnosis Code S56.509A

ICD-10: S56.509A
Short Description: Unsp inj extn musc/fasc/tend at forarm lv, unsp arm, init
Long Description: Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter
This is the 2018 version of the ICD-10-CM diagnosis code S56.509A

Valid for Submission
The code S56.509A is valid for submission for HIPAA-covered transactions.

Code Classification
  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the elbow and forearm (S50-S59)
      • Injury of muscle, fascia and tendon at forearm level (S56)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code S56.509A is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Traumatic division extensor tendon hand
  • Traumatic division of extensor tendon of forearm, wrist or hand

Information for Patients

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
  • 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.

  • Arm CT scan (Medical Encyclopedia)
  • Brachial plexopathy (Medical Encyclopedia)
  • Radial head fracture - aftercare (Medical Encyclopedia)
  • Radial nerve dysfunction (Medical Encyclopedia)

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