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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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
Use Additional
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code to identify the type of HIV disease:
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Acquired immune deficiency syndrome (AIDS) (B20)
- B20 Human immunodeficiency virus [HIV] disease
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Asymptomatic HIV status (Z21)
- Z21 Asymptomatic human immunodeficiency virus [HIV] infection status
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HIV positive NOS (Z21)
- Z21 Asymptomatic human immunodeficiency virus [HIV] infection status
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Symptomatic HIV disease (B20)
- B20 Human immunodeficiency virus [HIV] disease
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code (Chapter 1), to identify specific infectious or parasitic disease
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code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Includes
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the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care