O22.3 – Deep phlebothrombosis in pregnancy

ICD-10-CM 2027 diagnosis code · Other maternal disorders predominantly related to pregnancy

Non-billable header

ICD-10-CM code O22.3

Code: O22.3 (claims format: O223)
Description: Deep phlebothrombosis in pregnancy
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O20-O29 Other maternal disorders predominantly related to pregnancy
Parent codes: O22

Billable codes under O22.3

O22.3 is a header code and cannot be used on claims. Choose the most specific code:

Notes for O22.3

Applicable to:

Deep vein thrombosis, antepartum

Use additional code:

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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O22 – Venous complications and hemorrhoids in pregnancy

Excludes1 (not coded here):

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

Excludes2 (not included here):

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

Block O20-O29

Excludes2 (not included here):

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)

Index terms for O22.3

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in O22

Frequently asked questions

What is ICD-10 code O22.3?

O22.3 is the ICD-10-CM code for deep phlebothrombosis in pregnancy, in the block O20-O29 (Other maternal disorders predominantly related to pregnancy).

Is O22.3 a billable code?

No. O22.3 is a header code with more specific child codes; report one of the billable codes listed above.

What category does O22.3 belong to?

It belongs to category O22 – Venous complications and hemorrhoids in pregnancy.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.