Billable / Specific Code
ICD-10-CM H95.133 is the diagnosis code for Mucosal cyst of postmastoidectomy cavity, bilateral ears. This code falls under the section "Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified" within Chapter 8 — Diseases of the ear and mastoid process (H60-H95). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where H95.133 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, H95.133 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
H95.133 is the ICD-10-CM diagnosis code for "Mucosal cyst of postmastoidectomy cavity, bilateral ears". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of H95.133 is H95.13 ("Mucosal cyst of postmastoidectomy cavity"). H95.133 provides a more specific classification within this category.
H95.133 is located in Section H95 — "Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified" within Chapter 8 of the ICD-10-CM Tabular List.
Use H95.133 when the patients documented diagnosis matches "Mucosal cyst of postmastoidectomy cavity, bilateral ears" 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 Mucosal cyst of postmastoidectomy cavity, bilateral ears is H95.133.
Yes, H95.133 can be used as a primary diagnosis code since it is billable and specific.
H95.133 is in Chapter 8 of the ICD-10-CM Tabular List.
Yes, H95.133 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.