Non-Billable / Non-Specific Code
ICD-10-CM N63 is the diagnosis code for Unspecified lump in breast. This code falls under the section "Disorders of breast" within Chapter 14 — Diseases of the genitourinary system (N00-N99). 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 N63 sits in the ICD-10-CM classification helps ensure proper coding:
No, N63 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
N63 is the ICD-10-CM diagnosis code for "Unspecified lump in breast". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
N63 is located in Section N60-N65 — "Disorders of breast" within Chapter 14 of the ICD-10-CM Tabular List.
N63 has 5 sub-code(s) that provide more specific detail: N63.0, N63.1, N63.2, N63.3, N63.4.
Use N63 when the patients documented diagnosis matches "Unspecified lump in breast" 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 lump in breast is N63.
No, N63 is non-billable. Use a more specific sub-code for primary diagnosis billing.
N63 is in Chapter 14 of the ICD-10-CM Tabular List.
Yes, N63 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.