Index to Diseases and Injuries
Mastitis (acute) (diffuse) (nonpuerperal) (subacute)
Index code:N61.0
- with abscess N61.1
- chronic (cystic) — see Mastopathy, cystic
- cystic (Schimmelbusch's type) — see Mastopathy, cystic
- fibrocystic — see Mastopathy, cystic
- granulomatous N61.2-
- infective N61.0
- newborn P39.0
- interstitial, gestational or puerperal — see Mastitis, obstetric
- neonatal (noninfective) P83.4
- infective P39.0
- obstetric (interstitial) (nonpurulent)
- associated with
- lactation O91.23
- pregnancy O91.21-
- puerperium O91.22
- purulent
- associated with
- lactation O91.13
- pregnancy O91.11-
- puerperium O91.12
- periductal — see Ectasia, mammary duct
- phlegmonous — see Mastopathy, cystic
- plasma cell — see Ectasia, mammary duct
- without abscess N61.0
Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.
Frequently asked questions
What is the ICD-10-CM code for Mastitis?
The ICD-10-CM Alphabetic Index directs "Mastitis" to N61.0. Subterms below it may lead to a more specific code. Always confirm the code in the Tabular List before assigning it.
ICD-10-CM Index to Diseases and Injuries maintained by CDC/NCHS (public domain), from the CMS FY2027 release.