ICD-10 Code M02.042 – Arthropathy following intestinal bypass, left hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.042 – Arthropathy following intestinal bypass, left hand
What it is
This code identifies arthropathy that develops after intestinal bypass surgery and affects the left hand. Use it when documentation links the joint disorder to the bypass procedure rather than to trauma or another arthritis cause.
Clinical signs
Typical findings include joint pain, swelling, stiffness, and reduced hand function. Clinical features vary; refer to documentation for the specific joints involved and whether the arthropathy is inflammatory or degenerative.
When to use this code
Use M02.042 when the record states arthropathy following intestinal bypass and specifies the left hand. It is appropriate when the provider documents a causal relationship to the bypass surgery. If laterality is not stated, check documentation before coding.
Do not use for
Do not use this code for generalized arthropathy without a documented post-bypass cause. Do not assign it for right hand, bilateral hand, or unspecified hand involvement unless the record supports that coding.
Coding tip
Verify both the post-bypass etiology and the left-hand laterality in the note before you assign this code.