O91.2
Non-billableNonpurulent mastitis assoc w preg, the puerp and lactation
Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- supervision of normal pregnancy (Z34.-)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
- code to identify infection
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code O91.2?
ICD-10-CM code O91.2 represents "Nonpurulent mastitis associated with pregnancy, the puerperium and lactation". It is a non-billable header code — use a more specific child code for billing purposes.
Is O91.2 a billable code?
No, O91.2 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under O91.2.
What chapter is O91.2 in?
O91.2 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O91.2?
O91.2 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
What are the subcategories under O91.2?
O91.2 has 3 child codes, including: O91.21 (Nonpurulent mastitis associated with pregnancy), O91.22 (Nonpurulent mastitis associated with the puerperium), O91.23 (Nonpurulent mastitis associated with lactation).
Are additional codes required with O91.2?
Yes, when using O91.2 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.; code to identify infection.
What are the UMLS CUIs for O91.2?
O91.2 is linked to 1 UMLS Concept Unique Identifier: C2909507. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.