Deep necrosis of underlying tissues [deep third degree] without mention of loss of a body part, of multiple specified sites

This code signifies full-thickness tissue destruction extending through the dermis, epidermis, and into subcutaneous tissue, muscle, or bone, affecting multiple distinct anatomical locations. It represents a severe burn or injury where the tissue is necrotic, but there is no associated amputation or avulsion of a body part.

Apply this code for patients presenting with extensive deep third-degree burns or other injuries causing full-thickness necrosis across several specified body regions. Documentation must clearly indicate the depth of tissue destruction reaching subcutaneous layers or deeper, and specify multiple affected sites without mention of body part loss.

• Ensure documentation explicitly states "deep third degree" or describes necrosis extending into subcutaneous tissue, muscle, or bone.
• This code is for multiple specified sites; if only one site is affected, a more specific site-based code should be used.
• Do not use if there is an associated loss or amputation of a body part; separate codes exist for those scenarios.