O31.22
Continuing pregnancy after intrauterine death of one fetus or more, second trimester
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 8 never code together
7th character 7
0 not applicable or unspecified
1 fetus 1
2 fetus 2
3 fetus 3
4 fetus 4
5 fetus 5
9 other fetus
Instructional notes 7
O00-O9Achapter
Notes
- 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
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A
Index entries leading here 1
- Pregnancy (single) (uterine) Z33.1
Alongside this code 3 same parent — O31.2
Medications 3
5 Pregnancy Trimester, Second drugs 34 Pregnancy Trimester, Third drugs 9 Pregnancy Trimester, First drugs
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.