Blister (nonthermal) of unspecified forearm, init encntr

This code signifies a non-burn related blister located on an unspecified area of the forearm. It indicates the initial presentation or active treatment phase of the injury. The blister is not caused by heat, cold, or chemical exposure.

Apply this code when documenting a patient presenting with a blister on their forearm where the specific location (e.g., right, left, anterior, posterior) is not specified in the medical record. This is appropriate for the initial visit or when the patient is actively receiving care for the blister.

• Ensure the documentation explicitly states "unspecified forearm" or lacks laterality/specific anatomical detail.
• Confirm the blister etiology is non-thermal; otherwise, a burn code would be more appropriate.
• Append subsequent encounter (D) or sequela (S) characters for follow-up visits or complications, respectively.