N61 ICD-10-CA code: Inflammatory disorders of breast
N61 is the ICD-10-CA code for “Inflammatory disorders of breast” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
N61Inflammatory disorders of breast
ICD-10-CA · Canada
Index terms
Entries in CIHI’s alphabetical index that lead to N61. Searching the index by the condition the note names is how coders reach this code.
- Thelitis
- Mammillitis
- Fistula, breast
- Galactophoritis
- Fistula, mammary (gland)
- Suppuration, suppurative, breast
- Suppuration, suppurative, mammary gland
- Lobulitis (breast) sclerosing lymphocytic
- Infection, infected (opportunistic), nipple
- Infection, infected (opportunistic), mammary gland
- Mastitis (acute) (infective) (nonpuerperal) (subacute)
- Cellulitis (diffuse) (with lymphangitis), breast (nipple)
- Mastopathy, mastopathia, sclerosing lymphocytic, lobulitis
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative, breast
- Inflammation, inflamed, inflammatory (with exudation), areola
- Inflammation, inflamed, inflammatory (with exudation), breast
- Inflammation, inflamed, inflammatory (with exudation), nipple
- Mastitis (acute) (infective) (nonpuerperal) (subacute), infective
- Lobulitis (breast) sclerosing lymphocytic, in (due to) diabetes mellitus
- Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), nipple
- Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), subareolar
- Mastopathy, mastopathia, sclerosing lymphocytic, lobulitis, in (due to) diabetes mellitus
- Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), breast (acute) (chronic) (nonpuerperal)
- Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), areola (nipple) (acute) (chronic) (nonpuerperal)
Notes for N61
As CIHI prints them, with any note N61 takes from the headings above it.
Includes
- Abscess (acute)(chronic)(nonpuerperal) of:• areola• breastCarbuncle of breastCellulitis of breast (nipple)Mastitis (acute)(subacute)(nonpuerperal):• NOS• infectiveSclerosing lymphocytic lobulitis
Use additional code
Add a code for this detail when the note documents it.
- Use additional code from category (E10-E14) with fourth and fifth characters .68 to classify any associated diabetes mellitus.
Excludes
Conditions classified elsewhere.
- Cellulitis of chest wall (L03.30)neonatal infective mastitis (P39.0)puerperal infections or mastitis (O91.-)
- Disorders of breast associated with childbirth (O91-O92)From N60-N64 Disorders of breast
- Certain conditions originating in the perinatal period (P00-P96)certain infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 14: Diseases of the genitourinary system (N00-N99)
Where N61 sits
- 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
- 2Block N60-N64Disorders of breast
- 3Valid code N61Inflammatory disorders of breast
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code N61 mean?
N61 is the ICD-10-CA code for “Inflammatory disorders of breast” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is N61 in ICD-10-CA?
N61 sits under N60-N64 Disorders of breast, within Chapter 14: Diseases of the genitourinary system (N00-N99).
What coding notes apply to N61?
ICD-10-CA lists Includes, Use additional code, Excludes notes for N61, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.