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ICD-10-CM Current in FY 2027

O91.21

Nonpurulent mastitis associated with pregnancy

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where O91.21 sits in the official hierarchy. Each level is the code it is classified under.

  1. O91 Infections of breast associated with pregnancy, the puerperium and lactation
  2. O91.2 Parent Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
  3. O91.21 This code Nonpurulent mastitis associated with pregnancy

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Gestational interstitial mastitis

Inclusion Terms

Gestational lymphangitis of breast

Inclusion Terms

Gestational mastitis NOS

Inclusion Terms

Gestational parenchymatous mastitis

Use Additional Code

code to identify infection

Inherited from O91 — Infections of breast associated with pregnancy, the puerperium and lactation

More Specific Codes

4 codes under O91.21

Version History

How O91.21 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Nonpurulent mastitis associated with pregnancy

  2. FY 2026 Effective

    Unchanged

    Nonpurulent mastitis associated with pregnancy

Related Codes

Other codes under O91.2

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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