Exposure to supersonic waves, subsequent encounter

This code signifies a follow-up encounter for a patient who has experienced health effects due to exposure to supersonic waves. This could involve various physiological responses, such as auditory damage, barotrauma, or other systemic effects resulting from the intense pressure changes associated with supersonic phenomena. The "subsequent encounter" indicates that the initial assessment and treatment for the exposure have already occurred.

Use this code for return visits where a patient is being monitored, treated, or evaluated for ongoing symptoms or complications directly attributable to a past exposure to supersonic waves. This includes follow-up appointments for hearing loss, tinnitus, or other persistent issues stemming from the initial incident. It is appropriate when the patient is no longer in the acute phase of injury.

• Always pair this code with an external cause code (V95.4- or V97.3-) to specify the source of the supersonic waves.
• Ensure documentation clearly indicates the encounter is for follow-up care related to the initial supersonic wave exposure.
• Code any specific resulting conditions (e.g., H90.3- for sensorineural hearing loss) in addition to this external cause code.