O91.21
Nonpurulent mastitis associated with pregnancy
Applicable To
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Gestational interstitial mastitis
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Gestational lymphangitis of breast
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Gestational mastitis NOS
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Gestational parenchymatous mastitis
Details
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O91.21 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
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The 2023 edition of ICD-10-CM O91.21 became effective on October 1, 2022.
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This is the American ICD-10-CM version of O91.21 – other international versions of ICD-10 O91.21 may differ.