ICD-10-CM Diagnosis Code (2025)
Official Description for H70.1
Chronic mastoiditis
Coding Notes & Guidelines for H70.1
Excludes1: Not Coded Here
tuberculous mastoiditis (A18.03)
Inclusion Terms
- Caries of mastoid
- Fistula of mastoid
Parent Code (Less Specific):
About ICD-10-CM Code H70.1 (Chronic mastoiditis)
ICD-10-CM code H70.1 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM H70.1 became effective on October 1, 2024.
This page provides detailed information about H70.1 - Chronic mastoiditis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Chronic mastoiditis.