N61
Non-Billable

Inflammatory disorders of breast

Non-Billable / Non-Specific Code

What is Inflammatory disorders of breast?

ICD-10-CM N61 is the diagnosis code for Inflammatory disorders of 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.

⛔ Excludes1

Coding Guidelines for N61

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as N61. They are mutually exclusive:

  • inflammatory carcinoma of breast (C50.A-)
  • inflammatory disorder of breast associated with childbirth (O91.-)
  • neonatal infective mastitis (P39.0)
  • thrombophlebitis of breast [Mondor's disease] (I80.8)

ICD-10-CM Code Hierarchy

Understanding where N61 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeN61 — Inflammatory disorders of breast
Sub-Codes (3)
Sub-Codes 3 entries
N61.0Mastitis without abscessBillableN61.1Abscess of the breast and nippleBillableN61.2Granulomatous mastitisNon-BillableN61.20Granulomatous mastitis, unspecified breastBillableN61.21Granulomatous mastitis, right breastBillableN61.22Granulomatous mastitis, left breastBillableN61.23Granulomatous mastitis, bilateral breastBillable
Related Codes

Frequently Asked Questions

Is N61 a billable ICD-10-CM code?

No, N61 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does N61 mean?

N61 is the ICD-10-CM diagnosis code for "Inflammatory disorders of breast". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is N61 in?

N61 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 N61?

N61 has 3 sub-code(s) that provide more specific detail: N61.0, N61.1, N61.2.

When should I use N61?

Use N61 when the patients documented diagnosis matches "Inflammatory disorders of breast" 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 Inflammatory disorders of breast?

The ICD-10-CM code for Inflammatory disorders of breast is N61.

Can N61 be used for primary diagnosis?

No, N61 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is N61 in?

N61 is in Chapter 14 of the ICD-10-CM Tabular List.

What conditions are excluded from N61?

Type 1 Excludes for N61 include: inflammatory carcinoma of breast (C50.A-); inflammatory disorder of breast associated with childbirth (O91.-); neonatal infective mastitis (P39.0) and more.

Is N61 valid for 2026?

Yes, N61 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousN60.99Unspecified benign mammary dysplasia of unspecified breastNext →N61.0Mastitis without abscess
Code Details
N61
Inflammatory disorders of breast
Non-Billable / Non-Specific Code
14 — Diseases of the genitourinary system (N00-N99)
N60-N65 — Disorders of breast
2026 ICD-10-CM