ICD-10-CM Code M18: Osteoarthritis of first carpometacarpal joint and Related Diagnosis Codes.

The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions. Healthcare providers report these codes on Medical claims when diagnosing patient care.

Explore ICD-10-CM codes, organized by chapters based on body systems and medical conditions, as outlined in the International Classification of Diseases, Tenth Revision, Clinical Modification.

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A categorized list of ICD-10-CM codes organized by chapters based on body systems or medical conditions, according to the International Classification of Diseases, Tenth Revision, Clinical Modification.

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  • M18 - Osteoarthritis of first carpometacarpal joint
    • M18.0 - Bilateral primary osteoarthritis of first carpometacarpal joints
    • M18.1 - Unilateral primary osteoarthritis of first carpometacarpal joint
      • M18.10 - Unilateral primary osteoarthritis of first carpometacarpal joint, unspecified hand
      • M18.11 - Unilateral primary osteoarthritis of first carpometacarpal joint, right hand
      • M18.12 - Unilateral primary osteoarthritis of first carpometacarpal joint, left hand
    • M18.2 - Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
    • M18.3 - Unilateral post-traumatic osteoarthritis of first carpometacarpal joint
      • M18.30 - Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, unspecified hand
      • M18.31 - Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand
      • M18.32 - Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, left hand
    • M18.4 - Other bilateral secondary osteoarthritis of first carpometacarpal joints
    • M18.5 - Other unilateral secondary osteoarthritis of first carpometacarpal joint
      • M18.50 - Other unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified hand
      • M18.51 - Other unilateral secondary osteoarthritis of first carpometacarpal joint, right hand
      • M18.52 - Other unilateral secondary osteoarthritis of first carpometacarpal joint, left hand
    • M18.9 - Osteoarthritis of first carpometacarpal joint, unspecified
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Note: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes are developed and maintained by the Centers for Disease Control and Prevention (CDC). CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions. All rights are reserved by the respective entities.