Open wound of knee, leg [except thigh], and ankle, without mention of complication

This code signifies a break in the skin on the knee, lower leg (excluding the thigh), or ankle that exposes underlying tissue, without any documented infection, foreign body, or delayed healing. It represents an acute, uncomplicated injury to these specific anatomical areas.

Use this code for traumatic open wounds of the knee, lower leg, or ankle where the physician documentation explicitly states "open wound" or describes a laceration, avulsion, or puncture wound without mention of infection, foreign body, or other complications. This code is appropriate when the wound is fresh and has not yet developed any secondary issues.

• Always review documentation for specific anatomical location (e.g., knee, lower leg, ankle) to ensure correct body region.
• Differentiate from superficial injuries like abrasions or contusions, which are coded differently.
• If any complication (e.g., infection, foreign body, delayed healing) is documented, a more specific code from the 891.1 series should be used.