Vertigo from infrasound, sequela

This code describes persistent or long-term dizziness and a sensation of spinning or unsteadiness that developed as a lasting effect of exposure to infrasound. Infrasound refers to sound waves with frequencies below the lower limit of human audibility. The vertigo is not an acute reaction but a residual symptom.

Use this code when documenting a patient presenting with chronic or ongoing vertigo that is directly attributed to a past exposure to infrasound. This typically applies after the initial acute phase of exposure has passed, and the patient continues to experience symptoms. It is appropriate for conditions where the infrasound exposure is no longer occurring, but its effects on the vestibular system persist.

• Ensure documentation clearly links the vertigo to a past infrasound exposure and indicates it's a sequela.
• Do not use for acute or current infrasound exposure; this code is specifically for residual effects.
• Consider additional codes for any specific underlying conditions or other associated symptoms if documented.