Non-prs chr ulc of unsp up arm with msl invl w/o evd of necr

This code signifies a persistent, non-pressure-related open sore on an unspecified upper arm that extends into the muscle tissue but does not show signs of dead tissue. This type of ulcer is typically caused by underlying systemic conditions, vascular insufficiency, or trauma, rather than sustained pressure.

Use this code when documentation clearly indicates a chronic, non-pressure ulcer located on the upper arm, with the depth extending to the muscle layer. The absence of necrosis must be explicitly stated or clearly implied by the lack of necrotic tissue described. This code is appropriate when the specific laterality (left or right) of the upper arm is not documented.

• Ensure documentation specifies "non-pressure" and "chronic" to differentiate from acute or pressure ulcers.
• Verify the depth of the ulcer extends to muscle, and explicitly confirm the absence of necrosis.
• Avoid using this code if laterality (left or right upper arm) is documented; more specific codes exist for those scenarios.