Non-Billable / Non-Specific Code
ICD-10-CM H66.4 is the diagnosis code for Suppurative otitis media, unspecified. This code falls under the section "Diseases of middle ear and mastoid" within Chapter 8 — Diseases of the ear and mastoid process (H60-H95). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where H66.4 sits in the ICD-10-CM classification helps ensure proper coding:
No, H66.4 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
H66.4 is the ICD-10-CM diagnosis code for "Suppurative otitis media, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of H66.4 is H66 ("Suppurative and unspecified otitis media"). H66.4 provides a more specific classification within this category.
H66.4 is located in Section H65-H75 — "Diseases of middle ear and mastoid" within Chapter 8 of the ICD-10-CM Tabular List.
H66.4 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use H66.4 when the patients documented diagnosis matches "Suppurative otitis media, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Suppurative otitis media, unspecified is H66.4.
No, H66.4 is non-billable. Use a more specific sub-code for primary diagnosis billing.
H66.4 is in Chapter 8 of the ICD-10-CM Tabular List.
Yes, H66.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.