J32. 9 chronic sinusitis, unspecified. code. j32. 9 chronic icd 9 sinusitis code sinusitis, unspecified ⑩ [ . In icd-9-cm, there are 6 codes available for acute sinusitis, differentiated by the affected sinus(es). the. icd-10-centimeter nomenclature expands the code set to 14, . Home > 2012 icd-9-centimeter diagnosis codes > diseases of the respiratory system 460-519 > other diseases of upper respiratory tract 470-478 > chronic sinusitis 473> inflammation of the paranasal sinuses that typically lasts beyond eight weeks. Icd-9-cm 473. 9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 473. 9 should only be used for claims with a date of service on or before september 30, 2015. Sinus Disease Codes Icd10 Aaaai 461. 9 is a legacy non-billable code used to specify a medical diagnosis of acute sinusitis, unspecified. this code was replaced on september 30, 2015 by its icd-10 equivalent. convert 461. 9 to icd-10 the follo...