Blister of elbow, forearm, and wrist, without mention of infection

This code signifies a localized collection of fluid under the epidermis, specifically located on the elbow, forearm, or wrist. It represents a non-infected blister, often resulting from friction, burns, or other forms of trauma to these areas.

Use this code when documentation clearly indicates a blister on the elbow, forearm, or wrist, and there is no mention of infection (e.g., pus, erythema, fever). This applies to cases such as friction blisters from repetitive motion or minor thermal burns without signs of secondary infection.

• Ensure the documentation specifies the elbow, forearm, or wrist as the anatomical site.
• If infection is present, a more specific code from the 680-686 series (e.g., cellulitis, abscess) should be considered.
• Distinguish from open wounds or abrasions; a blister implies an intact or recently ruptured epidermal covering with fluid accumulation.