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    OpenPayerBilling CodesOsteoarthritisICD-10-CM m16-osteoarthritis-of-hip
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    ICD-10-CM Code For Osteoarthritis Of Hip: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group M16 includes degenerative osteoarthritis of the hip, covering primary osteoarthritis, secondary osteoarthritis due to underlying conditions, and prosthetic hip-related osteoarthritic changes. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as unilateral or bilateral hip degeneration, post-surgical status with prosthetic replacement, and degrees of joint involvement that affect treatment decisions. Accurate coding within the ICD-10-CM M16 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM M16: Osteoarthritis Of Hip Overview

    The ICD-10-CM M16 code group represents degenerative joint disease affecting the hip joint, including primary and secondary osteoarthritis. These diagnoses target the musculoskeletal system and specifically the hip joint, reflecting pain, stiffness, and functional limitation. Accurate coding matters for reimbursement because it captures disease severity, laterality, and any associated surgical status that affect claim adjudication.

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    When to Use

    Use a code from this group when the clinical record documents osteoarthritic degeneration of the hip joint or complications related to a hip prosthesis. Select specific codes to indicate laterality, primary versus secondary osteoarthritis, or presence of a prosthetic joint when documented.

    ICD-10-CM Codes

    15 rows

    ICD-10-CM CodeDescription
    M16.0Bilateral primary osteoarthritis of hip
    M16.10Unilateral primary osteoarthritis, unspecified hip
    M16.11Unilateral primary osteoarthritis, right hip
    M16.12Unilateral primary osteoarthritis, left hip
    M16.2Bilateral osteoarthritis resulting from hip dysplasia
    M16.30Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip
    M16.31Unilateral osteoarthritis resulting from hip dysplasia, right hip
    M16.32Unilateral osteoarthritis resulting from hip dysplasia, left hip
    M16.4Bilateral post-traumatic osteoarthritis of hip
    M16.50Unilateral post-traumatic osteoarthritis, unspecified hip
    M16.51Unilateral post-traumatic osteoarthritis, right hip
    M16.52Unilateral post-traumatic osteoarthritis, left hip
    M16.6Other bilateral secondary osteoarthritis of hip
    M16.7Other unilateral secondary osteoarthritis of hip
    M16.9Osteoarthritis of hip, unspecified

    DRG Codes

    2 rows

    DRG CodeDescription
    553Bone Diseases and Arthropathies with MCC
    554Bone Diseases and Arthropathies without MCC

    Typical Clinical Scenarios

    • An elderly patient with months of progressive groin and lateral hip pain worse with weight-bearing and limited internal rotation presents to clinic for evaluation; radiographs show joint space narrowing and osteophyte formation consistent with primary degenerative disease of the hip, and symptoms have persisted despite NSAIDs and physical therapy, so a diagnosis from this group is assigned for chronic primary osteoarthritis. Typical codes: M16.11, M16.12
    • A middle-aged patient with a history of developmental dysplasia of the hip who now reports chronic unilateral hip pain and progressive functional decline after prior corrective surgery presents for preoperative planning; imaging demonstrates secondary osteoarthritic changes localized to the previously affected side, so a secondary osteoarthritis code from this group is used to capture the underlying etiology. Typical codes: M16.6, M16.7
    • An older adult arrives to the emergency department after an acute exacerbation of chronic hip pain following a fall, with increased swelling and inability to bear weight; evaluation reveals advanced osteoarthritis with superimposed acute worsening but no fracture, so an osteoarthritis diagnosis is coded to represent the chronic condition contributing to the acute presentation and need for urgent pain management. Typical codes: M16.10, M16.9

    Related Codes

    M15-POLYOSTEOARTHRITIS

    ICD-10-CM Code For Polyosteoarthritis: Group Overview

    M17-OSTEOARTHRITIS-OF-KNEE

    ICD-10-CM Code For Osteoarthritis Of Knee: Group Overview

    M18-OSTEOARTHRITIS-FIRST-CARPOMETACARPAL-JOINT

    ICD-10-CM Code For Osteoarthritis Of First Carpometacarpal Joint: Group Overview

    M19-OTHER-AND-UNSPECIFIED-OSTEOARTHRITIS

    ICD-10-CM Code For Other And Unspecified Osteoarthritis: 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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