Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerBilling CodesOsteoarthritisICD-10-CM m19-other-and-unspecified-osteoarthritis
    Ask Trek AI about this page

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

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group M19 includes other and unspecified osteoarthritis diagnoses such as post-traumatic osteoarthritis, osteoarthritis of multiple sites, and osteoarthritis not classified elsewhere, covering degenerative joint conditions of hips, knees, hands, spine, and other joints. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture joint-specific involvement, disease chronicity, and complexity when more specific osteoarthritis codes are not applicable. Accurate coding within the ICD-10-CM M19 group supports proper claim adjudication and complete clinical documentation that align with payer requirements.

    Customize your policy alerts

    Sign up for ICD-10-CM Code For Other And Unspecified Osteoarthritis: Group Overview policy alerts

    Get alerted when relevant policies change without checking for updates manually.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    ICD-10-CM M19: Other And Unspecified Osteoarthritis Overview

    The ICD-10-CM M19 group represents other and unspecified osteoarthritis diagnoses affecting joints and periarticular structures, including cases not classified elsewhere or lacking laterality. These conditions target the musculoskeletal system, primarily degenerative joint disease of sites such as the knee, hip, hand, and other joints. Accurate coding matters for appropriate clinical documentation and supports correct reimbursement by reflecting the specific joint involvement and disease status.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    When to Use

    Use a code from this group when the clinical record documents osteoarthritis that is explicitly described as other, unspecified, post-traumatic, or involving multiple sites and does not map to a more specific osteoarthritis code. Select the most accurate M19 code that reflects the documented joint(s) and disease status when laterality or site-specific codes are not appropriate.

    ICD-10-CM Codes

    52 rows

    ICD-10-CM CodeDescription
    M19.011Primary osteoarthritis, right shoulder
    M19.012Primary osteoarthritis, left shoulder
    M19.019Primary osteoarthritis, unspecified shoulder
    M19.021Primary osteoarthritis, right elbow
    M19.022Primary osteoarthritis, left elbow
    M19.029Primary osteoarthritis, unspecified elbow
    M19.031Primary osteoarthritis, right wrist
    M19.032Primary osteoarthritis, left wrist
    M19.039Primary osteoarthritis, unspecified wrist
    M19.041Primary osteoarthritis, right hand
    M19.042Primary osteoarthritis, left hand
    M19.049Primary osteoarthritis, unspecified hand
    M19.071Primary osteoarthritis, right ankle and foot
    M19.072Primary osteoarthritis, left ankle and foot
    M19.079Primary osteoarthritis, unspecified ankle and foot
    M19.09Primary osteoarthritis, other specified site
    M19.111Post-traumatic osteoarthritis, right shoulder
    M19.112Post-traumatic osteoarthritis, left shoulder
    M19.119Post-traumatic osteoarthritis, unspecified shoulder
    M19.121Post-traumatic osteoarthritis, right elbow

    Showing 1–20 of 52

    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 progressive knee pain, stiffness worse after activity, and decreased mobility presents to primary care for worsening functional limitations over months. Physical exam shows crepitus and reduced range of motion of the knee without signs of inflammatory arthritis; radiographs demonstrate joint space narrowing and osteophyte formation consistent with primary osteoarthritis. A diagnosis from this group is assigned to capture site-specific, chronic degenerative osteoarthritis of the knee. Typical codes: M19.071, M19.072
    • A middle-aged patient with prior anterior cruciate ligament reconstruction now reports new-onset lateral hip and knee pain months after surgery; clinic evaluation attributes symptoms to post-traumatic degenerative change in the adjacent joint rather than acute surgical complications. Imaging reveals secondary osteoarthritic changes related to prior joint injury, and a code from this group is used to document secondary/other osteoarthritis at the affected joint as a comorbidity influencing rehabilitation. Typical codes: M19.211, M19.212
    • An older adult is seen in the emergency department for an acute exacerbation of chronic hand osteoarthritis with severe pain limiting self-care tasks and inability to perform activities of daily living. There is no erythema or systemic signs of infection; management focuses on pain control and brief functional assessment, and an unspecified/other osteoarthritis code for the hand is assigned when more specific subclassification is not documented. Typical codes: M19.041, M19.049

    Related Codes

    M15-POLYOSTEOARTHRITIS

    ICD-10-CM Code For Polyosteoarthritis: Group Overview

    M16-OSTEOARTHRITIS-OF-HIP

    ICD-10-CM Code For Osteoarthritis Of Hip: 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

    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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.