Unspecified injury of left middle and inner ear, init encntr

This code signifies an undiagnosed or poorly defined traumatic injury affecting the structures of the left middle and/or inner ear. This could include damage to the ossicles, cochlea, vestibule, or semicircular canals, where the precise nature of the injury (e.g., fracture, dislocation, concussion) has not yet been determined.

Apply this code when documentation indicates a new, traumatic injury to the left middle and/or inner ear, but the specific type of injury is not specified. This is appropriate for initial evaluations following an accident or trauma where further diagnostic workup is pending. Supporting documentation would include emergency department notes or initial physician assessments describing ear trauma without definitive findings.

• Only use this code for the initial encounter for treatment of the injury. Subsequent encounters require a different seventh character.
• Avoid using this code if a more specific diagnosis (e.g., S09.312A for tympanic membrane perforation) is documented.
• Ensure the documentation clearly specifies the left ear; otherwise, an unspecified laterality code may be more appropriate.