Acute lymphangitis of right upper limb

This code describes an acute bacterial infection of the lymphatic vessels in the right arm, often presenting as red streaks extending from an infection site towards the axilla. It indicates inflammation of the lymphatic channels, typically caused by streptococcal or staphylococcal bacteria.

Apply this code when documentation specifies acute lymphangitis affecting the patient's right upper extremity. This diagnosis is supported by clinical findings such as erythema, tenderness, and palpable lymph nodes along the lymphatic pathways of the right arm.

• Ensure documentation clearly specifies "acute" and "right upper limb" to support this specific code.
• Do not confuse with cellulitis (L03.11-) unless lymphangitis is explicitly documented as a separate diagnosis.
• Code any underlying infection (e.g., wound infection, abscess) as a primary diagnosis, with lymphangitis as a secondary diagnosis.