Blister (nonthermal) of unspecified wrist, sequela

This code signifies a non-burn related blister that has healed, but its lasting effects (sequela) are still present on an unspecified wrist. This could include residual scarring, chronic pain, or functional limitations directly attributable to the original blister injury.

Use this code when documenting the long-term consequences or late effects of a non-thermal blister on the wrist, after the acute phase of the injury has passed. This is appropriate when the patient is being treated for issues stemming from the original blister, rather than the blister itself.

• Always sequence this sequela code after the code for the specific residual condition being treated.
• Ensure documentation clearly links the current wrist issue to a past non-thermal blister.
• Avoid using this code for acute blisters; instead, use the appropriate acute blister code.