Blister of unsp external genital organs, female, sequela

This code signifies a non-thermal blister on an unspecified external female genital organ, representing a residual effect or complication of a previous injury or condition. It indicates that the acute phase of the blister formation has passed, and the current encounter addresses a long-term consequence.

Use this code when documenting a patient presenting with a persistent or chronic blister on the vulva, labia, or other external female genital structure, where the original cause was not a burn or frostbite. This is appropriate for follow-up encounters addressing complications such as scarring, chronic pain, or functional impairment directly attributable to a past non-thermal blister.

• Always sequence this code after the code(s) for the primary condition or sequela being treated.
• Ensure documentation clearly states the blister is non-thermal and that the encounter is for a sequela.
• If the specific external genital organ is known, a more specific code should be used if available.