Pregnancy, childbirth and the puerperium (O00-O9A)

Note:
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
Use additional
code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes 1:
supervision of normal pregnancy (Z34.-)
Excludes 2:
mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

O30 Multiple gestation [+]
Code also any complications specific to multiple gestation
O31 Complications specific to multiple gestation [+]
Excludes 2: delayed delivery of second twin, triplet, etc. (O63.2)
malpresentation of one fetus or more (O32.9)
placental transfusion syndromes (O43.0-)
One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O32 Maternal care for malpresentation of fetus [+]
Includes: the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
Excludes 1: malpresentation of fetus with obstructed labor (O64.-)
One of the following 7th characters is to be assigned to each code under category O32. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O32 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O33 Maternal care for disproportion [+]
Includes: the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
Excludes 1: disproportion with obstructed labor (O65-O66)
O34 Maternal care for abnormality of pelvic organs [+]
Code first any associated obstructed labor (O65.5)
Includes: the listed conditions as a reason for hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
Use additional code for specific condition
O35 Maternal care for known or suspected fetal abnormality and damage [+]
Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy
Code also any associated maternal condition
Excludes 1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
One of the following 7th characters is to be assigned to each code under category O35. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O35 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O36 Maternal care for other fetal problems [+]
Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
Excludes 1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
placental transfusion syndromes (O43.0-)
Excludes 2: labor and delivery complicated by fetal stress (O77.-)
One of the following 7th characters is to be assigned to each code under category O36. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O36 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O40 Polyhydramnios [+]
Includes: hydramnios
Excludes 1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
One of the following 7th characters is to be assigned to each code under category O40. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O40 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O41 Other disorders of amniotic fluid and membranes [+]
Excludes 1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
One of the following 7th characters is to be assigned to each code under category O41. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O41 that has a 7th character of 1 through 9.
0 - not applicable or unspecified
1 - fetus 1
2 - fetus 2
3 - fetus 3
4 - fetus 4
5 - fetus 5
9 - other fetus
O42 Premature rupture of membranes [+]
O43 Placental disorders [+]
Excludes 2: maternal care for poor fetal growth due to placental insufficiency (O36.5-)
placenta previa (O44.-)
placental polyp (O90.89)
placentitis (O41.14-)
premature separation of placenta [abruptio placentae] (O45.-)
O44 Placenta previa [+]
O45 Premature separation of placenta [abruptio placentae] [+]
O46 Antepartum hemorrhage, not elsewhere classified [+]
Excludes 1: hemorrhage in early pregnancy (O20.-)
intrapartum hemorrhage NEC (O67.-)
placenta previa (O44.-)
premature separation of placenta [abruptio placentae] (O45.-)
O47 False labor [+]
Includes: Braxton Hicks contractions
threatened labor
Excludes 1: preterm labor (O60.-)
O48 Late pregnancy [+]

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