O22.9
Venous complication in pregnancy, unspecified
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 7 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 15 never code together
Instructional notes 10
O22.9code
Inclusion terms
- Gestational phlebitis NOS
- Gestational phlebopathy NOS
- Gestational thrombosis NOS
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 2
Alongside this code 7 same parent — O22
O22.0 Varicose veins of lower extremity in pregnancy category O22.1 Genital varices in pregnancy category O22.2 Superficial thrombophlebitis in pregnancy category O22.3 Deep phlebothrombosis in pregnancy category O22.4 Hemorrhoids in pregnancy category O22.5 Cerebral venous thrombosis in pregnancy category O22.8 Other venous complications in pregnancy category
Subordinate codes 4
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.