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    OpenPayerBilling CodesInjuries to the ankle and footICD-10-CM s96-injury-of-muscle-and-tendon-ankle-foot
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    ICD-10-CM Code For Injury Of Muscle And Tendon At Ankle And Foot Level: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S96 includes acute injuries to muscles and tendons at the ankle and foot level, such as strains, partial and complete tendon tears, and other soft tissue trauma affecting the distal lower extremity. These ICD-10-CM diagnosis codes are used to document clinical encounters for traumatic soft tissue injury around the ankle and foot, capturing the site, laterality, and severity of the injury. Accurate coding within the ICD-10-CM S96 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM S96: Injury Of Muscle And Tendon At Ankle And Foot Level Overview

    The ICD-10-CM S96 code group represents acute injuries to muscles and tendons located at the ankle and foot level, including strains, ruptures, and partial tears. These diagnoses target the musculoskeletal system and periarticular soft tissues of the foot and ankle. Accurate coding matters for correct classification of injury severity and for reimbursement and clinical continuity.

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    When to Use

    Use a code from this group when a patient presents with a documented muscle or tendon injury at the ankle or foot that requires clinical care, such as emergency evaluation, immobilization, or surgical repair. Apply the specific code that matches the documented tendon or muscle involved, the nature of the injury, laterality, and whether the visit is initial, subsequent, or for sequela.

    ICD-10-CM Codes

    180 rows

    ICD-10-CM CodeDescription
    S96.001AUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, initial encounter
    S96.001DUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter
    S96.001SUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, sequela
    S96.002AUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, initial encounter
    S96.002DUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, subsequent encounter
    S96.002SUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, sequela
    S96.009AUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, initial encounter
    S96.009DUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, subsequent encounter
    S96.009SUnspecified injury of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, sequela
    S96.011AStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, initial encounter
    S96.011DStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter
    S96.011SStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, sequela
    S96.012AStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, initial encounter
    S96.012DStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, subsequent encounter
    S96.012SStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, left foot, sequela
    S96.019AStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, initial encounter
    S96.019DStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, subsequent encounter
    S96.019SStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, unspecified foot, sequela
    S96.021ALaceration of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, initial encounter
    S96.021DLaceration of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter

    Showing 1–20 of 180

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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

    Typical Clinical Scenarios

    • An adult runner presents to the urgent care after twisting their ankle during a race, with acute lateral ankle pain, swelling, and focal tenderness over the peroneal tendons; clinic exam and point‑of‑care ultrasound confirm a partial tear of a tendon at the ankle level requiring immobilization and activity restriction. A diagnosis from this group is assigned because the injury is an acute tendon/muscle tear localized to the ankle/foot region and the visit is for initial management. Typical codes: S96.011A, S96.012A
    • An elderly patient with a history of peripheral neuropathy and chronic Achilles tendinopathy develops progressive posterior ankle pain and decreased function over months; they present to clinic for conservative management of a chronic degenerative tendon lesion without recent trauma. A code from this group is used to capture the ongoing, nonacute tendon/muscle disorder at the ankle/foot level and to guide longitudinal care and therapy planning. Typical codes: S96.011D, S96.012D
    • A middle‑aged construction worker returns for follow‑up after surgical repair of a ruptured foot tendon sustained on the job; visit documents postoperative complications with delayed healing and persistent pain several weeks after the initial operative intervention. A diagnosis from this group is assigned to report the sequelae or subsequent encounter related to the original tendon injury during the recovery phase. Typical codes: S96.011S, S96.012S

    Related Codes

    S90-SUPERFICIAL-INJURY-OF-ANKLE-FOOT-TOES

    ICD-10-CM Code For Superficial Injury Of Ankle Foot And Toes: Group Overview

    S91-OPEN-WOUND-OF-ANKLE-FOOT-TOES

    ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

    S92-FRACTURE-OF-FOOT-AND-TOE

    ICD-10-CM Code For Fracture Of Foot And Toe Except Ankle: Group Overview

    S93-DISLOCATION-AND-SPRAIN-ANKLE-FOOT-TOE

    ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments At Ankle, Foot And Toe Level: Group Overview

    S94-INJURY-OF-NERVES-ANKLE-FOOT

    ICD-10-CM Code For Injury Of Nerves At Ankle And Foot Level: Group Overview

    S95-INJURY-OF-BLOOD-VESSELS-ANKLE-FOOT

    ICD-10-CM Code For Injury Of Blood Vessels At Ankle And Foot Level: Group Overview

    S97-CRUSHING-INJURY-OF-ANKLE-AND-FOOT

    ICD-10-CM Code For Crushing Injury Of Ankle And Foot: Group Overview

    S98-TRAUMATIC-AMPUTATION-OF-ANKLE-AND-FOOT

    ICD-10-CM Code For Traumatic Amputation Of Ankle And Foot: Group Overview

    S99-OTHER-AND-UNSPECIFIED-INJURIES-ANKLE-FOOT

    ICD-10-CM Code For Other And Unspecified Injuries Of Ankle And Foot: 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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