Non-Billable / Non-Specific Code
ICD-10-CM D31.9 is the diagnosis code for Benign neoplasm of unspecified part of eye. This code falls under the section "Benign neoplasms, except benign neuroendocrine tumors" within Chapter 2 — Neoplasms (C00-D49). 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 D31.9 sits in the ICD-10-CM classification helps ensure proper coding:
No, D31.9 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D31.9 is the ICD-10-CM diagnosis code for "Benign neoplasm of unspecified part of eye". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D31.9 is D31 ("Benign neoplasm of eye and adnexa"). D31.9 provides a more specific classification within this category.
D31.9 is located in Section D10-D36 — "Benign neoplasms, except benign neuroendocrine tumors" within Chapter 2 of the ICD-10-CM Tabular List.
D31.9 has 3 sub-code(s) that provide more specific detail: D31.90, D31.91, D31.92.
Use D31.9 when the patients documented diagnosis matches "Benign neoplasm of unspecified part of 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 Benign neoplasm of unspecified part of eye is D31.9.
No, D31.9 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D31.9 is in Chapter 2 of the ICD-10-CM Tabular List.
Yes, D31.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.