Diagnosis Code:
383.31
Short Description:
Postmastoid mucosal cyst
Long Description:
Mucosal cyst of postmastoidectomy cavity
Code Classification:
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Diseases of the sense organs (360–389)
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Diseases of the ear and mastoid process (380-389)
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383 Mastoiditis and related conditions
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383.31 Postmastoid mucosal cyst
Code Version: 2015 ICD-9-CM