Complete traumatic trnsphal amputation of left thumb, subs

This code signifies the complete traumatic severance of the left thumb at any point through the phalanx (bone of the thumb), resulting from an injury. It indicates that the entire distal portion of the thumb, including bone and soft tissue, has been traumatically removed.

This code is appropriate for encounters following the initial treatment of a complete traumatic transphalangeal amputation of the left thumb. This includes follow-up visits for wound care, assessment of healing, management of complications, or preparation for prosthetic fitting.

• Ensure documentation specifies "complete" and "transphalangeal" to differentiate from partial or other amputation levels.
• Verify the laterality is explicitly documented as "left thumb."
• The 7th character "D" is crucial for subsequent encounters; use "A" for initial encounters and "S" for sequela.