2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Diseases Of The Ear And Mastoid Process 380-389 > Mastoiditis And Related Conditions 383.* > 2008 ICD-9-CM Diagnosis 383.33 Granulations of postmastoidectomy cavity  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 383.33 can be accessed here. 383.33 is a specific code that can be used to specify a diagnosis 383.33 contains 5 index entries View the ICD-9-CM Volume 1 383.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 383.33 also known as: Chronic inflammation of postmastoidectomy cavity Index entries containing 383.33: Complications surgical procedures 998.9 postmastoidectomy 383.30 granulation 383.33 inflammation, chronic 383.33 Granulation tissue, abnormal - see also Granuloma postmastoidectomy cavity 383.33 Granuloma NEC 686.1 postmastoidectomy cavity 383.33 Inflammation, inflamed, inflammatory (with exudation) postmastoidectomy cavity 383.30 chronic 383.33