Acute mastoiditis with other complications, left ear

This code signifies an acute inflammation of the mastoid air cells in the left ear, accompanied by complications beyond simple inflammation, such as facial paralysis, labyrinthitis, or intracranial extension. It indicates a severe and potentially dangerous infection requiring prompt medical intervention.

Use this code when documentation clearly states acute mastoiditis in the left ear with specific mention of an associated complication. This typically applies to patients presenting with symptoms like postauricular pain, swelling, fever, and evidence of a secondary issue directly related to the mastoid infection. Documentation should specify "left ear" and the nature of the "other complication."

• Ensure the documentation explicitly states "acute" and specifies "left ear" to differentiate from chronic or right/bilateral involvement.
• Confirm that a specific complication, other than just inflammation, is documented. If no specific complication is noted, consider H70.002 (Acute mastoiditis without complication, left ear).
• Always sequence this code first if it is the primary reason for the encounter, followed by codes for any specific complications if they are separately identifiable and treated.