Tympanosclerosis, left ear

This code describes a condition characterized by the formation of hardened, calcified plaques within the tympanic membrane (eardrum) or middle ear, specifically affecting the left ear. These deposits are typically white and can lead to reduced mobility of the eardrum and ossicles, potentially causing conductive hearing loss.

Use this code when documentation clearly indicates the presence of tympanosclerosis localized to the left ear, often noted during otoscopic examination or surgical findings. This diagnosis is typically made based on visual inspection of the eardrum showing characteristic white, chalky patches.

• Ensure laterality is explicitly documented as "left ear" to support this specific code.
• Distinguish from otosclerosis (H80.-), which involves abnormal bone growth in the middle ear, not calcification of the tympanic membrane.
• Code any associated conductive hearing loss (H90.0-) or other ear conditions separately, following sequencing guidelines.