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    v1.0.28
    OpenPayerBilling CodesInjuries to the thoraxICD-10-CM s23-dislocation-and-sprain-thorax
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    ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Thorax: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S23 includes dislocations and sprains of thoracic joints and ligaments, such as injuries to the sternoclavicular joint and costal attachments. These ICD-10-CM diagnosis codes are used to document acute traumatic injuries to thoracic musculoskeletal structures, capturing site-specific involvement and injury severity. Accurate coding within the ICD-10-CM S23 group supports proper claim adjudication and complete clinical documentation.

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    ICD-10-CM S23: Dislocation And Sprain Of Joints And Ligaments Of Thorax Overview

    The ICD-10-CM S23 code group covers dislocations and sprains affecting the thoracic joints and associated ligaments, such as injuries to the sternoclavicular and costovertebral articulations. These diagnoses target the thorax musculoskeletal structures and are recorded after traumatic events or acute mechanical stress. Accurate coding matters for correct clinical records and supports appropriate reimbursement by reflecting the nature and severity of the injury.

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    When to Use

    Use a code from this group for documented traumatic dislocation or sprain of thoracic joints and ligaments identified during evaluation or treatment. Select the code that matches the specific anatomic site, laterality, and encounter type documented in the medical record.

    ICD-10-CM Codes

    111 rows

    ICD-10-CM CodeDescription
    S23.0XXATraumatic rupture of thoracic intervertebral disc, initial encounter
    S23.0XXDTraumatic rupture of thoracic intervertebral disc, subsequent encounter
    S23.0XXSTraumatic rupture of thoracic intervertebral disc, sequela
    S23.100ASubluxation of unspecified thoracic vertebra, initial encounter
    S23.100DSubluxation of unspecified thoracic vertebra, subsequent encounter
    S23.100SSubluxation of unspecified thoracic vertebra, sequela
    S23.101ADislocation of unspecified thoracic vertebra, initial encounter
    S23.101DDislocation of unspecified thoracic vertebra, subsequent encounter
    S23.101SDislocation of unspecified thoracic vertebra, sequela
    S23.110ASubluxation of T1/T2 thoracic vertebra, initial encounter
    S23.110DSubluxation of T1/T2 thoracic vertebra, subsequent encounter
    S23.110SSubluxation of T1/T2 thoracic vertebra, sequela
    S23.111ADislocation of T1/T2 thoracic vertebra, initial encounter
    S23.111DDislocation of T1/T2 thoracic vertebra, subsequent encounter
    S23.111SDislocation of T1/T2 thoracic vertebra, sequela
    S23.120ASubluxation of T2/T3 thoracic vertebra, initial encounter
    S23.120DSubluxation of T2/T3 thoracic vertebra, subsequent encounter
    S23.120SSubluxation of T2/T3 thoracic vertebra, sequela
    S23.121ADislocation of T2/T3 thoracic vertebra, initial encounter
    S23.121DDislocation of T2/T3 thoracic vertebra, subsequent encounter

    Showing 1–20 of 111

    DRG Codes

    11 rows

    DRG CodeDescription
    205Other Respiratory System Diagnoses with MCC
    206Other Respiratory System Diagnoses without MCC
    551Medical Back Problems with MCC
    552Medical Back Problems without MCC
    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
    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

    • A middle-aged adult presents to the emergency department after a high-speed motor vehicle collision with severe anterior chest pain, localized tenderness over the sternoclavicular region, and deformity limiting shoulder movement. Imaging (CT or X-ray) confirms an acute dislocation of the sternoclavicular joint without associated open wound. A code from this group is assigned to capture the acute traumatic dislocation of a thoracic joint. Typical codes: S23.110A, S23.111A
    • An elderly patient with osteoporosis develops progressive chest wall pain and instability after a low-energy fall at home; evaluation shows a subacute posterior dislocation of a costovertebral or costotransverse joint contributing to persistent thoracic pain and impaired respiration. The patient is seen in clinic for ongoing management and monitoring of a non-acute joint sprain/dislocation identified after the initial injury. Typical codes: S23.120D, S23.121D
    • A young athlete is seen in follow-up several weeks after a contact sports injury; they have persistent chest wall pain and reduced range of motion despite conservative care, and documentation notes a chronic or sequela state of a prior thoracic joint dislocation causing functional limitation. A code from this group indicating a sequela or subsequent encounter is used to reflect the chronic residual condition. Typical codes: S23.0XXS, S23.111S

    Related Codes

    S20-SUPERFICIAL-INJURY-OF-THORAX

    ICD-10-CM Code For Superficial Injury Of Thorax: Group Overview

    S21-OPEN-WOUND-OF-THORAX

    ICD-10-CM Code For Open Wound Of Thorax: Group Overview

    S22-FRACTURE-OF-RIBS-STERNUM-THORACIC-SPINE

    ICD-10-CM Code For Fracture Of Rib(s), Sternum And Thoracic Spine: Group Overview

    S24-INJURY-OF-THORACIC-NERVES-AND-SPINAL-CORD

    ICD-10-CM Code For Injury Of Nerves And Spinal Cord At Thorax Level: Group Overview

    S25-INJURY-OF-BLOOD-VESSELS-OF-THORAX

    ICD-10-CM Code For Injury Of Blood Vessels Of Thorax: Group Overview

    S26-INJURY-OF-HEART

    ICD-10-CM Code For Injury Of Heart: Group Overview

    S27-INJURY-OF-INTRATHORACIC-ORGANS

    ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview

    S28-CRUSHING-INJURY-OF-THORAX

    ICD-10-CM Code For Crushing Injury Of Thorax And Traumatic Amputation Of Part Of Thorax: Group Overview

    S29-OTHER-AND-UNSPECIFIED-INJURIES-OF-THORAX

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