2006 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 > ICD-9-CM Diagnosis 383 Mastoiditis and related conditions 383 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 383.0 Acute mastoiditis 383.0 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 383.00 Acute mastoiditis without complications 383.00 is a specific code that can be used to specify a diagnosis 383.00 contains 5 index entries ICD-9-CM Diagnosis 383.01 Subperiosteal abscess of mastoid 383.01 is a specific code that can be used to specify a diagnosis 383.01 contains 6 index entries ICD-9-CM Diagnosis 383.02 Acute mastoiditis with other complications 383.02 is a specific code that can be used to specify a diagnosis 383.02 contains 6 index entries ICD-9-CM Diagnosis 383.1 Chronic mastoiditis 383.1 is a specific code that can be used to specify a diagnosis 383.1 contains 5 index entries ICD-9-CM Diagnosis 383.2 Petrositis 383.2 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 383.20 Petrositis unspecified 383.20 is a specific code that can be used to specify a diagnosis 383.20 contains 6 index entries ICD-9-CM Diagnosis 383.21 Acute petrositis 383.21 is a specific code that can be used to specify a diagnosis 383.21 contains 1 index entry ICD-9-CM Diagnosis 383.22 Chronic petrositis 383.22 is a specific code that can be used to specify a diagnosis 383.22 contains 1 index entry ICD-9-CM Diagnosis 383.3 Complications following mastoidectomy 383.3 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 383.30 Postmastoidectomy complication unspecified 383.30 is a specific code that can be used to specify a diagnosis 383.30 contains 3 index entries ICD-9-CM Diagnosis 383.31 Mucosal cyst of postmastoidectomy cavity 383.31 is a specific code that can be used to specify a diagnosis 383.31 contains 2 index entries ICD-9-CM Diagnosis 383.32 Recurrent cholesteatoma of postmastoidectomy cavity 383.32 is a specific code that can be used to specify a diagnosis 383.32 contains 3 index entries ICD-9-CM Diagnosis 383.33 Granulations of postmastoidectomy cavity 383.33 is a specific code that can be used to specify a diagnosis 383.33 contains 5 index entries ICD-9-CM Diagnosis 383.8 Other disorders of mastoid 383.8 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 383.81 Postauricular fistula 383.81 is a specific code that can be used to specify a diagnosis 383.81 contains 4 index entries ICD-9-CM Diagnosis 383.89 Other disorders of mastoid 383.89 is a specific code that can be used to specify a diagnosis 383.89 contains 1 index entry ICD-9-CM Diagnosis 383.9 Unspecified mastoiditis Inflammation of the cavity and air cells in the mastoid part of the temporal bone. 383.9 is a specific code that can be used to specify a diagnosis 383.9 contains 3 index entries