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    v1.0.28
    OpenPayerBilling CodesInjuries to the elbow and forearmICD-10-CM s56-injury-of-forearm-soft-tissues
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    ICD-10-CM Code For Injury Of Muscle, Fascia And Tendon At Forearm Level: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S56 includes injuries to muscles, fascia, and tendons at the forearm level, covering lacerations, strains, ruptures, and traumatic tears of these soft tissues. These ICD-10-CM diagnosis codes are used to document acute traumatic forearm soft tissue injuries, capturing severity, specific structures involved, and encounter type for treatment and follow-up. Accurate coding within the ICD-10-CM S56 group supports complete clinical documentation and appropriate reimbursement.

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    ICD-10-CM S56: Injury Of Muscle, Fascia And Tendon At Forearm Level Overview

    This group represents traumatic injuries to muscles, fascia, and tendons located at the forearm level, including partial and complete tears, lacerations, and strains. It targets the musculoskeletal and soft tissue structures of the forearm and adjacent connective tissues. Accurate coding matters for proper clinical documentation and reimbursement because specificity about the injured structure, laterality, and encounter type affects claim adjudication and payment.

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    When to Use

    Use a code from this group when documenting an acute or chronic care encounter for a forearm muscle, fascia, or tendon injury with specified laterality and encounter status. Select the most specific code that reflects the type of injury, anatomic site, and whether the visit is an initial encounter, subsequent encounter, or for sequelae.

    ICD-10-CM Codes

    432 rows

    ICD-10-CM CodeDescription
    S56.001AUnspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level, initial encounter
    S56.001DUnspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level, subsequent encounter
    S56.001SUnspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level, sequela
    S56.002AUnspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level, initial encounter
    S56.002DUnspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level, subsequent encounter
    S56.002SUnspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level, sequela
    S56.009AUnspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level, initial encounter
    S56.009DUnspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level, subsequent encounter
    S56.009SUnspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level, sequela
    S56.011AStrain of flexor muscle, fascia and tendon of right thumb at forearm level, initial encounter
    S56.011DStrain of flexor muscle, fascia and tendon of right thumb at forearm level, subsequent encounter
    S56.011SStrain of flexor muscle, fascia and tendon of right thumb at forearm level, sequela
    S56.012AStrain of flexor muscle, fascia and tendon of left thumb at forearm level, initial encounter
    S56.012DStrain of flexor muscle, fascia and tendon of left thumb at forearm level, subsequent encounter
    S56.012SStrain of flexor muscle, fascia and tendon of left thumb at forearm level, sequela
    S56.019AStrain of flexor muscle, fascia and tendon of unspecified thumb at forearm level, initial encounter
    S56.019DStrain of flexor muscle, fascia and tendon of unspecified thumb at forearm level, subsequent encounter
    S56.019SStrain of flexor muscle, fascia and tendon of unspecified thumb at forearm level, sequela
    S56.021ALaceration of flexor muscle, fascia and tendon of right thumb at forearm level, initial encounter
    S56.021DLaceration of flexor muscle, fascia and tendon of right thumb at forearm level, subsequent encounter

    Showing 1–20 of 432

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    DRG Codes

    14 rows

    DRG CodeDescription
    562Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh with MCC
    563Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh without MCC
    564Other Musculoskeletal System and Connective Tissue Diagnoses with MCC
    565Other Musculoskeletal System and Connective Tissue Diagnoses with CC
    566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC
    604Trauma to the Skin, Subcutaneous Tissue and Breast with MCC
    605Trauma to the Skin, Subcutaneous Tissue and Breast without MCC
    913Traumatic Injury with MCC
    914Traumatic Injury without MCC
    949Aftercare with CC/MCC
    950Aftercare without CC/MCC
    963Other Multiple Significant Trauma with MCC
    964Other Multiple Significant Trauma with CC
    965Other Multiple Significant Trauma without CC/MCC

    Related Codes

    S50-SUPERFICIAL-INJURY-OF-ELBOW-AND-FOREARM

    ICD-10-CM Code For Superficial Injury Of Elbow And Forearm: Group Overview

    S51-OPEN-WOUND-OF-ELBOW-AND-FOREARM

    ICD-10-CM Code For Open Wound Of Elbow And Forearm: Group Overview

    S52-FRACTURE-OF-FOREARM

    ICD-10-CM Code For Fracture Of Forearm: Group Overview

    S53-DISLOCATION-AND-SPRAIN-ELBOW

    ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Elbow: Group Overview

    S54-INJURY-OF-FOREARM-NERVES

    ICD-10-CM Code For Injury Of Nerves At Forearm Level: Group Overview

    S55-INJURY-OF-BLOOD-VESSELS-FOREARM

    ICD-10-CM Code For Injury Of Blood Vessels At Forearm Level: Group Overview

    S57-CRUSHING-INJURY-ELBOW-FOREARM

    ICD-10-CM Code For Crushing Injury Of Elbow And Forearm: Group Overview

    S58-TRAUMATIC-AMPUTATION-OF-ELBOW-AND-FOREARM

    ICD-10-CM Code For Traumatic Amputation Of Elbow And Forearm: Group Overview

    S59-OTHER-AND-UNSPECIFIED-INJURIES-ELBOW-FOREARM

    ICD-10-CM Code For Other And Unspecified Injuries Of Elbow And Forearm: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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