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O99.321 - Drug use complicating pregnancy, first trimester


The ICD 10 Code for Drug use complicating pregnancy, first trimester is listed as O99.321.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: O99.321
Description: Drug use complicating pregnancy, first trimester
Diagnostic Related Groups
(MS-DRG v30.0)
781 - Other Antepartum Diagnoses W Medical Complications
Chapter Pregnancy, childbirth and the puerperium (O00-O9A)
Block Other obstetric conditions, not elsewhere classified (O94-O9A)
Parent O99.32 - Drug use complicating pregnancy, childbirth, and the puerperium
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 648.31 - Drug dependence of mother, delivered, with or without mention of antepartum condition (approximate)
ICD 9 Dx Code: 648.33 - Drug dependence of mother, antepartum condition or complication (approximate)
ICD-10-CM Siblings (same level / similar specificity) of O99.321:
O99.320 - Drug use complicating pregnancy, unspecified trimester
O99.322 - Drug use complicating pregnancy, second trimester
O99.323 - Drug use complicating pregnancy, third trimester
O99.324 - Drug use complicating childbirth
O99.325 - Drug use complicating the puerperium