Billable / Specific Code
ICD-10-CM H90.A21 is the diagnosis code for Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side. This code falls under the section "Other disorders of ear" 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 H90.A21 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, H90.A21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
H90.A21 is the ICD-10-CM diagnosis code for "Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of H90.A21 is H90.A2 ("Sensorineural hearing loss, unilateral, with restricted hearing on the contralateral side"). H90.A21 provides a more specific classification within this category.
H90.A21 is located in Section H90-H94 — "Other disorders of ear" within Chapter 8 of the ICD-10-CM Tabular List.
Use H90.A21 when the patients documented diagnosis matches "Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side" 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 Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side is H90.A21.
Yes, H90.A21 can be used as a primary diagnosis code since it is billable and specific.
H90.A21 is in Chapter 8 of the ICD-10-CM Tabular List.
Yes, H90.A21 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.