Billable / Specific Code
ICD-10-CM H10.402 is the diagnosis code for Unspecified chronic conjunctivitis, left eye. This code falls under the section "Disorders of conjunctiva" within Chapter 7 — Diseases of the eye and adnexa (H00-H59). 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 H10.402 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, H10.402 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
H10.402 is the ICD-10-CM diagnosis code for "Unspecified chronic conjunctivitis, left eye". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of H10.402 is H10.40 ("Unspecified chronic conjunctivitis"). H10.402 provides a more specific classification within this category.
H10.402 is located in Section H10-H11 — "Disorders of conjunctiva" within Chapter 7 of the ICD-10-CM Tabular List.
Use H10.402 when the patients documented diagnosis matches "Unspecified chronic conjunctivitis, left eye" 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 Unspecified chronic conjunctivitis, left eye is H10.402.
Yes, H10.402 can be used as a primary diagnosis code since it is billable and specific.
H10.402 is in Chapter 7 of the ICD-10-CM Tabular List.
Yes, H10.402 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.