Foreign body granuloma of the skin and subcutaneous tissue

This code describes a localized inflammatory reaction in the skin or subcutaneous tissue characterized by the formation of granulomas, which are collections of immune cells, in response to the presence of a foreign substance. This reaction is typically chronic and can manifest as nodules, papules, or plaques. The foreign body is often microscopic and can include materials like suture fragments, silicone, or other exogenous substances introduced into the tissue.

Apply this code when documentation clearly indicates a foreign body granuloma affecting the skin or the tissue directly beneath it. This diagnosis is often made clinically based on the appearance of the lesion and patient history, and may be confirmed by biopsy revealing granulomatous inflammation with foreign material. Use this code when the specific nature of the foreign body is not further specified or when the granuloma is the primary diagnosis.

• Do not use this code for granulomas due to infections (e.g., tuberculosis, leprosy) or systemic inflammatory conditions; these have specific codes.
• If the specific foreign body is known and has a more precise ICD-10-CM code (e.g., granuloma due to suture), use that more specific code if available.
• Ensure documentation specifies "granuloma" and "foreign body" in relation to the skin or subcutaneous tissue to support this diagnosis.