ICD-9-CM Vol. 1 Diagnostic Codes →
6. DISEASES OF THE NERVOUS SYSTEM AND SENSE ORGANS (320-389) →
section notes
DISEASES OF THE EAR AND MASTOID PROCESS (380-389) →
section notes
389 Hearing loss →
section notes
389.2 Mixed conductive and sensorineural hearing loss →
section notes
389.20   Mixed hearing loss NOS
389.21   Mixed hearing loss,unilt
389.22   Mixed hearing loss,bilat
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