N60.4
Non-Billable

Mammary duct ectasia

Non-Billable / Non-Specific Code

What is Mammary duct ectasia?

ICD-10-CM N60.4 is the diagnosis code for Mammary duct ectasia. 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.

Coding Guidelines for N60.4

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.

ICD-10-CM Code Hierarchy

Understanding where N60.4 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 3 entries
N60.41Mammary duct ectasia of right breastBillableN60.42Mammary duct ectasia of left breastBillableN60.49Mammary duct ectasia of unspecified breastBillable
Related Codes

Frequently Asked Questions

Is N60.4 a billable ICD-10-CM code?

No, N60.4 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does N60.4 mean?

N60.4 is the ICD-10-CM diagnosis code for "Mammary duct ectasia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of N60.4?

The parent code of N60.4 is N60 ("Benign mammary dysplasia"). N60.4 provides a more specific classification within this category.

What section is N60.4 in?

N60.4 is located in Section N60-N65 — "Disorders of breast" within Chapter 14 of the ICD-10-CM Tabular List.

What are the sub-codes of N60.4?

N60.4 has 3 sub-code(s) that provide more specific detail: N60.41, N60.42, N60.49.

When should I use N60.4?

Use N60.4 when the patients documented diagnosis matches "Mammary duct ectasia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Mammary duct ectasia?

The ICD-10-CM code for Mammary duct ectasia is N60.4.

Can N60.4 be used for primary diagnosis?

No, N60.4 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is N60.4 in?

N60.4 is in Chapter 14 of the ICD-10-CM Tabular List.

Is N60.4 valid for 2026?

Yes, N60.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousN60.39Fibrosclerosis of unspecified breastNext →N60.41Mammary duct ectasia of right breast
Code Details
N60.4
Mammary duct ectasia
Non-Billable / Non-Specific Code
14 — Diseases of the genitourinary system (N00-N99)
N60-N65 — Disorders of breast
2026 ICD-10-CM