Blister (nonthermal) of right wrist, sequela

This code signifies a non-heat-related blister located on the right wrist, indicating a residual effect or complication from a previous injury or condition. It describes a chronic or late-stage manifestation of a blister, rather than an acute presentation.

Use this code when documenting a patient presenting with a blister on the right wrist that is clearly identified as a long-term consequence of an earlier, non-thermal event. This would apply to cases where the original injury has healed, but the blister remains or has reappeared as a sequela.

• Ensure documentation clearly states the blister is on the right wrist and is a sequela.
• Confirm the blister's etiology is non-thermal; if thermal, a different code series would be appropriate.
• Always sequence this code after the code for the original injury or condition that led to the sequela, if applicable and still being treated.