All ICD10 Codes

N61

Non-Billable
ChapterN00–N99
Rankcategory
Official Description

Inflammatory disorders of breast

Use a more specific code (2 billable, 1 non-billable)
N61.0Mastitis without abscessN61.1Abscess of the breast and nippleN61.2Granulomatous mastitishas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 14: Diseases of the Genitourinary System (N00-N99).

CH14 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

N60-N65 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • disorders of breast associated with childbirth (O91-O92)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • 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)

Clinical Hierarchy

BillableHas subcodes
CH14Diseases of the genitourinary system (N00-N99)
N60-N65Disorders of breast (N60-N65)
N61Inflammatory disorders of breastNot billable
N61.0Mastitis without abscessBillable
N61.1Abscess of the breast and nippleBillable
N61.2Granulomatous mastitisSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N61:

blockN60-N65
Disorders of breast (N60-N65)
View context instructions
chapterCH14
Diseases of the genitourinary system (N00-N99)
View context instructions

Code History

  • FY 2016: Superseded by N61.0
  • FY 2016: Superseded by N61.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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