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    OpenPayerBilling CodesInjuries to the knee and lower legICD-10-CM s85-injury-of-blood-vessels-lower-leg
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    ICD-10-CM Code For Injury Of Blood Vessels At Lower Leg Level: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S85 includes traumatic injuries to arteries and veins located at the lower leg, such as lacerations, punctures, or crush injuries affecting tibial and peroneal vessels. These ICD-10-CM diagnosis codes are used to document acute vascular trauma at the lower leg level, capturing details about laterality, open versus closed wound status, and associated complications. Accurate coding within the ICD-10-CM S85 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM S85: Injury Of Blood Vessels At Lower Leg Level Overview

    The ICD-10-CM S85 group includes traumatic injuries to arteries and veins at the level of the lower leg. These diagnoses target vascular structures of the tibia and fibula region and adjacent soft tissues. Accurate coding matters because it documents the severity and anatomical site of vascular injury, which impacts clinical care and reimbursement.

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    When to Use

    Use codes from this group when a patient sustains acute vascular trauma localized to the lower leg that requires documentation of the specific vessel and injury characteristics. Select the code that reflects laterality, wound status, and any associated complications documented in the medical record.

    ICD-10-CM Codes

    270 rows

    ICD-10-CM CodeDescription
    S85.001AUnspecified injury of popliteal artery, right leg, initial encounter
    S85.001DUnspecified injury of popliteal artery, right leg, subsequent encounter
    S85.001SUnspecified injury of popliteal artery, right leg, sequela
    S85.002AUnspecified injury of popliteal artery, left leg, initial encounter
    S85.002DUnspecified injury of popliteal artery, left leg, subsequent encounter
    S85.002SUnspecified injury of popliteal artery, left leg, sequela
    S85.009AUnspecified injury of popliteal artery, unspecified leg, initial encounter
    S85.009DUnspecified injury of popliteal artery, unspecified leg, subsequent encounter
    S85.009SUnspecified injury of popliteal artery, unspecified leg, sequela
    S85.011ALaceration of popliteal artery, right leg, initial encounter
    S85.011DLaceration of popliteal artery, right leg, subsequent encounter
    S85.011SLaceration of popliteal artery, right leg, sequela
    S85.012ALaceration of popliteal artery, left leg, initial encounter
    S85.012DLaceration of popliteal artery, left leg, subsequent encounter
    S85.012SLaceration of popliteal artery, left leg, sequela
    S85.019ALaceration of popliteal artery, unspecified leg, initial encounter
    S85.019DLaceration of popliteal artery, unspecified leg, subsequent encounter
    S85.019SLaceration of popliteal artery, unspecified leg, sequela
    S85.091AOther specified injury of popliteal artery, right leg, initial encounter
    S85.091DOther specified injury of popliteal artery, right leg, subsequent encounter

    Showing 1–20 of 270

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    DRG Codes

    10 rows

    DRG CodeDescription
    299Peripheral Vascular Disorders with MCC
    300Peripheral Vascular Disorders with CC
    301Peripheral Vascular Disorders without CC/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 involved in a motor vehicle collision presents to the emergency department with a deep penetrating laceration to the anterior lower leg resulting in active arterial bleeding, expanding hematoma, and signs of limb ischemia (pallor and decreased distal pulses). Emergency imaging and surgical exploration confirm a traumatic transection of the tibial artery at the mid-calf requiring vascular repair. A code from this group is assigned for the acute injury to a blood vessel at the lower leg level. Typical codes: S85.011A, S85.012A
    • An elderly patient on long‑term anticoagulation for atrial fibrillation develops progressive swelling and discoloration of the lower leg after a minor contusion at home; evaluation reveals a nonpenetrating blunt injury with rupture of a venous structure causing a large subcutaneous hematoma and ongoing oozing. The patient is admitted for reversal of anticoagulation and local surgical evacuation; a lower leg blood vessel injury code is used to capture the blunt vascular trauma complicating antithrombotic therapy. Typical codes: S85.091A, S85.092A
    • A young athlete presents to clinic weeks after a sports-related knee hyperextension with persistent claudication and paresthesia of the foot; duplex ultrasound identifies a partially thrombosed lower leg arterial injury with secondary chronic ischemic changes requiring close follow‑up and possible vascular intervention. Because the presentation is a later encounter for a vascular injury of the lower leg with ongoing sequelae, a code denoting a subsequent or sequela encounter from this group is selected. Typical codes: S85.011D, S85.011S

    Related Codes

    S80-SUPERFICIAL-INJURY-KNEE-LOWER-LEG

    ICD-10-CM Code For Superficial Injury Of Knee And Lower Leg: Group Overview

    S81-OPEN-WOUND-KNEE-LOWER-LEG

    ICD-10-CM Code For Open Wound Of Knee And Lower Leg: Group Overview

    S82-FRACTURE-OF-LOWER-LEG

    ICD-10-CM Code For Fracture Of Lower Leg, Including Ankle: Group Overview

    S83-DISLOCATION-AND-SPRAIN-OF-KNEE

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

    S84-INJURY-OF-LOWER-LEG-NERVES

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

    S87-CRUSHING-INJURY-LOWER-LEG

    ICD-10-CM Code For Crushing Injury Of Lower Leg: Group Overview

    S88-TRAUMATIC-AMPUTATION-OF-LOWER-LEG

    ICD-10-CM Code For Traumatic Amputation Of Lower Leg: Group Overview

    S89-OTHER-AND-UNSPECIFIED-INJURIES-OF-LOWER-LEG

    ICD-10-CM Code For Other And Unspecified Injuries Of Lower Leg: 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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