Clubbing of fingers

This code describes the bulbous enlargement of the distal phalanges of the fingers, often accompanied by changes in the nail bed, such as increased convexity and loss of the normal angle between the nail and the nail fold. It is a non-specific sign that can indicate various underlying systemic conditions.

Use this code when documentation explicitly states "clubbing of fingers" without an identified underlying cause, or when the clubbing is a symptom of a condition not otherwise specified. It is appropriate when the physician notes this physical finding during an examination.

• Do not code this if a definitive underlying cause for the clubbing is documented and has its own specific ICD-10-CM code.
• Ensure documentation clearly specifies "fingers" as opposed to toes, as clubbing can occur in both.
• Review the "Excludes1" note carefully; congenital clubfinger (Q68.1) is never coded with R68.3.