Blister (nonthermal) of right little finger, sequela

This code signifies a non-heat-related blister located on the right little finger. It indicates that the blister is a residual effect or complication of a previous injury or condition, rather than an acute event.

Apply this code when documenting a patient presenting with a blister on their right little finger that is clearly identified as a long-term consequence of an earlier injury or disease process. This is appropriate for conditions that have healed but left a persistent blister as a sequela.

• Always ensure documentation explicitly states the blister is a "sequela" or "late effect" of a prior condition.
• Do not use this code for acute, current blisters; those require an initial or subsequent encounter code.
• A secondary code for the underlying cause of the original injury or condition should also be reported, if known and relevant.