Code
Hierarchy
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O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
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O94-O9A Other obstetric conditions, not elsewhere classified (O94-O9A)
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O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
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O99.6 Diseases of the digestive system complicating pregnancy, childbirth and the puerperium
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O99.61 Diseases of the digestive system complicating pregnancy
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O99.611 Diseases of the digestive system complicating pregnancy, first trimester
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O99.612 Diseases of the digestive system complicating pregnancy, second trimester
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O99.613 Diseases of the digestive system complicating pregnancy, third trimester
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O99.619 Diseases of the digestive system complicating pregnancy, unspecified trimester
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Notes
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CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
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Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
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Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
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1st trimester- less than 14 weeks 0 days
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2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
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3rd trimester- 28 weeks 0 days until delivery
Inclusion Terms
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Conditions in K00-K93
Use Additional
Includes
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conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care