O22.3

Deep phlebothrombosis in pregnancy

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 15 never code together

O22code

Excludes1

venous complications of:
abortion NOS (O03.9)O03.9
ectopic or molar pregnancy (O08.7)O08.7
failed attempted abortion (O07.35)O07.35
induced abortion (O04.85)O04.85
spontaneous abortion (O03.89)O03.89

Excludes2

obstetric pulmonary embolism (O88.-)O88.-
venous complications and hemorrhoids of childbirth and the puerperium (O87.-)O87.-

Excludes2

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

Excludes1

Excludes2

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 10

Inclusion terms

Use additional code

code to identify the deep vein thrombosis (I82.4-, I82.5-, I82.62-, I82.72-)I82.4-I82.4-I82.5-I82.5-I82.62-I82.62-I82.72-I82.72-
code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)Z79.01 Z79.01

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 3

Thrombophlebitis I80.9
- antepartum O22.2
  - deep O22.3
Pregnancy (single) (uterine) Z33.1
- complicated by (care of) (management affected by)
  - phlebothrombosis (superficial) O22.2
    - deep O22.3
  - thrombosis O22.9
    - deep O22.3
Milk-leg (deep vessels) (nonpuerperal) — see Embolism, vein, lower extremity
- complicating pregnancy O22.3

Alongside this code 7 same parent — O22

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.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.