Atrophic nonflaccid tympanic membrane, left ear

This code signifies a thinning or wasting away of the eardrum in the left ear, where the membrane maintains its normal tension and does not appear loose or floppy. This atrophy can result from chronic inflammation, infection, or previous surgical interventions affecting the tympanic membrane. It indicates a structural change in the eardrum without associated flaccidity.

Apply this code when documentation specifies atrophy of the left tympanic membrane that is explicitly noted as "nonflaccid" or where flaccidity is not mentioned. This diagnosis is typically made during an otoscopic examination by an otolaryngologist or primary care physician. Supporting documentation should clearly indicate the laterality and the nonflaccid nature of the atrophic change.

• Differentiate carefully from flaccid atrophy (H73.81-) as this code specifically excludes flaccidity.
• Ensure laterality is clearly documented (left ear).
• Consider co-reporting with codes for underlying causes, such as chronic otitis media, if applicable and documented.