Blister (nonthermal) of unsp part of neck, init encntr

This code signifies a non-thermal blister located on an unspecified area of the neck. It indicates a fluid-filled lesion caused by factors other than heat, such as friction, irritation, or an allergic reaction, in its initial presentation.

Use this code for a patient presenting with a newly diagnosed blister on the neck where the cause is explicitly documented as non-thermal and the specific location on the neck is not further detailed. Documentation should clearly state "blister," "non-thermal," and "neck."

• Ensure documentation specifies "non-thermal" to differentiate from burn blisters.
• If the specific location on the neck (e.g., anterior, posterior) is documented, a more specific code within S10.9- should be used.
• This code is for the initial encounter; subsequent encounters for the same injury would require a different seventh character.