O91.21
Non-Billable
ChapterO00–O9A
Ranksubcategory
Official Description
Nonpurulent mastitis associated with pregnancy
Use a more specific code (4 billable)
Metadata & Insights
- •Non-billable category (requires more specific sub-code).
- •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).
Instructional Notes
Includes
- Gestational interstitial mastitis
- Gestational lymphangitis of breast
- Gestational mastitis NOS
- Gestational parenchymatous mastitis
General instructions are available for the parent sections:
Clinical Hierarchy
BillableHas subcodes
CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O85-O92Complications predominantly related to the puerperium (O85-O92)
O91Infections of breast associated with pregnancy, the puerperium and lactation
O91.2Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
O91.21Nonpurulent mastitis associated with pregnancyNot billable
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to O91.21:
categoryO91
Infections of breast associated with pregnancy, the puerperium and lactation
View context instructionsblockO85-O92
Complications predominantly related to the puerperium (O85-O92)
View context instructionsMS-DRG Classification
No direct MS-DRG triggers identified.
Cross Reference
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