2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Chorioretinal Inflammations Scars And Other Disorders Of Choroid 363.* > 2006 ICD-9-CM Diagnosis 363.21 Pars planitis View the most recent version of ICD-9-CM 363.21 Form of granulomatous uveitis occurring in the region of the pars plana. This disorder is a common condition with no detectable focal pathology. It causes fibrovascular proliferation at the inferior ora serrata. 363.21 is a specific code that can be used to specify a diagnosis 363.21 contains 2 index entries View the ICD-9-CM Volume 1 363.* hierarchy Alternate Terminology Posterior cyclitis  Index entries containing 363.21: Cyclitis (see also Iridocyclitis) 364.3 posterior 363.21 Pars planitis 363.21