Enlarged and hypertrophic nails

This code describes a condition where the nails, typically toenails, become abnormally thick, overgrown, and often discolored. This hypertrophy can lead to a claw-like appearance, making the nails difficult to trim and potentially causing discomfort or pain. It is often associated with aging, trauma, or underlying systemic conditions.

Use this code when documentation specifies onychauxis or onychogryphosis, indicating a significant increase in nail thickness and/or curvature. This diagnosis is supported by physical examination findings describing thickened, hardened, or malformed nails. It is commonly seen in podiatry and dermatology settings.

• Differentiate from other nail dystrophies like onycholysis or onychomycosis, which have distinct codes.
• Consider if an underlying cause (e.g., fungal infection, psoriasis) is documented and should be coded first.
• Ensure the documentation clearly states "enlarged" or "hypertrophic" to support this specific code.