ICD-10-CM > J00-J99 > J30-J39 > J31 > J31.2 J31.2 Chronic pharyngitis Billable/Specific Copy Code Copy Description Applicable To Chronic sore throatAtrophic pharyngitis (chronic)Granular pharyngitis (chronic)Hypertrophic pharyngitis (chronic) Type 2 Excludes acute pharyngitis (J02.9)