Acquired absence of right thumb

This code indicates the complete or partial absence of the right thumb due to a cause other than a congenital condition. This typically results from trauma, surgical amputation, or disease processes that necessitated removal of the digit.

Apply this code for patients presenting with documentation of a missing right thumb that was acquired after birth. This includes follow-up care for amputations, prosthetic fittings, or management of complications related to the absence of the digit.

• Always specify laterality (right vs. left) and the specific digit involved.
• Do not use this code for congenital absence; refer to codes in Chapter 17 (Q00-Q99).
• Code any underlying cause of the amputation (e.g., trauma, disease) as an additional diagnosis.