Other hypertrophic osteoarthropathy, right hand

This code describes a non-specific form of hypertrophic osteoarthropathy affecting the right hand. This condition is characterized by abnormal bone and soft tissue proliferation, often presenting with digital clubbing, periostosis, and arthropathy. It is typically secondary to an underlying systemic disease, though primary forms exist.

Use this code when documentation specifies hypertrophic osteoarthropathy of the right hand, and the specific type (e.g., primary, secondary, or specific syndrome) is not further defined or is classified as "other." This code is appropriate when the physician's diagnosis explicitly states "other hypertrophic osteoarthropathy of the right hand" or similar non-specific terminology.

• Ensure documentation clearly specifies the right hand; laterality is crucial for accurate coding.
• If a more specific type of hypertrophic osteoarthropathy is documented (e.g., primary, secondary to lung cancer), a more precise code from the M89.4 subcategory should be used.
• Always code the underlying systemic condition, if known, as the primary diagnosis, with this code as a secondary diagnosis to describe the manifestation.