Blister (nonthermal) of oth part of neck, sequela

This code signifies a non-thermal blister located on a specific, but not otherwise classified, area of the neck, representing a late effect or complication of an earlier injury or condition. It indicates that the blister is no longer an acute injury but rather a residual problem.

Apply this code when documenting a non-healing or chronic blister on the neck that is a direct consequence of a previous injury or condition. Documentation should clearly state the blister's location on the neck (e.g., posterior neck, lateral neck) and its sequela nature, often indicating a past injury or dermatological event.

• Always sequence this code after the code for the underlying condition or external cause that led to the sequela, if applicable.
• Ensure documentation specifies "other specified part of neck" to differentiate from more precise anatomical sites.
• Verify that the blister is explicitly documented as non-thermal and a sequela, not an acute injury.