Block in Chapter 15

O20–O29

Other maternal disorders predominantly related to pregnancy

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)

Inherited from Chapter 15 Pregnancy, childbirth and the puerperium

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (1 note)

Inherited from Chapter 15 Pregnancy, childbirth and the puerperium

Not included here. Both codes may be reported if the patient has both conditions.

This page

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Also from chapter/block level (4 notes)

Inherited from Chapter 15 Pregnancy, childbirth and the puerperium

Also from chapter/block level (6 notes)

Inherited from Chapter 15 Pregnancy, childbirth and the puerperium

CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
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)
Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery