Corrosion of internal genitourinary organs, sequela

This code signifies the long-term or residual effects resulting from a past corrosive injury to the internal genitourinary organs. These sequelae can manifest as chronic pain, scarring, strictures, or functional impairment that persists after the acute phase of the burn has resolved.

Apply this code when documenting conditions that are a direct consequence of a previous corrosive injury to internal genitourinary structures, such as the bladder, urethra, or uterus. This is appropriate for follow-up encounters where the acute injury has healed but its lasting impact is being addressed.

• Always use this code as a secondary diagnosis, following a code for the specific sequela being treated (e.g., N35.9 for urethral stricture).
• Ensure documentation clearly links the current condition to a past corrosive injury.
• The "S" in the 7th character indicates sequela and is mandatory for this code.