ICD-10-CM > O00-O9A > O20-O29 > O26 > O26.0 O26.0 Excessive weight gain in pregnancy Non-Billable/Non-Specific Type 2 Excludes gestational edema (O12.0, O12.2) Codes O26.00Excessive weight gain in pregnancy, unspecified trimesterO26.01Excessive weight gain in pregnancy, first trimesterO26.02Excessive weight gain in pregnancy, second trimesterO26.03Excessive weight gain in pregnancy, third trimester
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