Temporary auditory threshold shift, bilateral

This code signifies a temporary, reversible decrease in hearing sensitivity affecting both ears. It typically results from acute exposure to loud noise, leading to a transient elevation of the auditory threshold. The hearing loss is not permanent and is expected to recover over time.

Apply this code when documentation clearly indicates a bilateral, temporary shift in auditory thresholds, often following noise exposure (e.g., concert, industrial noise, firearm discharge). Supporting documentation should specify the temporary nature and bilateral involvement, usually confirmed by audiometric testing showing a reversible threshold elevation.

• Ensure the documentation explicitly states "temporary" and "bilateral" for accurate code assignment.
• Do not confuse with permanent hearing loss codes (H90.x) or unilateral temporary shifts (H93.241, H93.242).
• Consider an external cause code (e.g., W42.x) if the specific cause of noise exposure is known and documented.