O91
Non-billableInfect of breast assoc w pregnancy, the puerp and lactation
Infections of breast 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.
Status
Non-billable / Header
Block
O85-O92
Child Codes
3
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?
ICD-10-CM code O91 represents "Infections of breast 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 a billable code?
No, O91 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.
What chapter is O91 in?
O91 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O91?
O91 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
What are the subcategories under O91?
O91 has 3 child codes, including: O91.0 (Infct of nipple assoc w pregnancy, the puerp and lactation), O91.1 (Abscess of breast assoc w pregnancy, the puerp and lactation), O91.2 (Nonpurulent mastitis assoc w preg, the puerp and lactation).
Are additional codes required with O91?
Yes, when using O91 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?
O91 is linked to 1 UMLS Concept Unique Identifier: C2909482. 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.