383.9 - Unspecified Mastoiditis
The ICD 9 Code for Unspecified mastoiditis is listed as 383.9.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS, and chapter information where available.
| ICD 9 CM Field | Value |
|---|---|
| Diagnosis Code: | 383.9 |
| Long Description: | Unspecified mastoiditis |
| Short Description: | Mastoiditis NOS |
| Chapter: | Diseases Of The Nervous System And Sense Organs |
| Block: | Diseases Of The Ear And Mastoid Process (380-389) |
| ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS): | |
| ICD-10-CM Code: | H70.90 - Unspecified mastoiditis, unspecified ear (approximate) |
| ICD-9-CM Siblings (same level / similar specificity) of 383.9: | |
| 383.1 - Chronic mastoiditis | |