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ICD-10 Guide
ICD-10 CodesO22.9

O22.9

Billable

Venous complication in pregnancy, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/08/2025

Code Description

ICD-10 O22.9 is a billable code used to indicate a diagnosis of venous complication in pregnancy, unspecified.

Key Diagnostic Point:

Venous complications during pregnancy can manifest as a variety of conditions, including venous thrombosis, varicose veins, and superficial venous thrombosis. These complications arise due to physiological changes in the body, such as increased blood volume and hormonal changes that affect blood coagulation. The risk of venous thromboembolism (VTE) is significantly heightened during pregnancy due to factors like venous stasis, increased coagulability, and vascular endothelial injury. Symptoms may include swelling, pain, and tenderness in the affected limb, and in severe cases, can lead to pulmonary embolism. Accurate diagnosis often requires imaging studies such as Doppler ultrasound. Management may involve anticoagulation therapy, particularly in high-risk patients, to prevent serious complications. This code is used when the specific type of venous complication is not documented, necessitating careful clinical evaluation and documentation to ensure appropriate coding and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of venous complications that can occur during pregnancy.
  • Need for precise documentation to differentiate between types of venous issues.
  • Potential overlap with other conditions such as deep vein thrombosis (DVT) and superficial thrombophlebitis.
  • Variability in treatment protocols based on severity and patient history.

Audit Risk Factors

  • Inadequate documentation of the specific venous complication.
  • Failure to document the patient's history of thrombosis or anticoagulation therapy.
  • Misclassification of the condition due to overlapping symptoms with other pregnancy-related conditions.
  • Inconsistent use of codes across different healthcare providers.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of symptoms, diagnostic tests, and treatment plans is essential for accurate coding.

Common Clinical Scenarios

Patients presenting with leg swelling, pain, or a history of thrombosis requiring evaluation and management.

Billing Considerations

Consideration of the patient's obstetric history and any pre-existing conditions that may affect venous health.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk factors, including previous thromboembolic events and current anticoagulation management.

Common Clinical Scenarios

Management of pregnant patients with a history of VTE or those requiring anticoagulation therapy.

Billing Considerations

Close monitoring of anticoagulation therapy and its effects on both maternal and fetal health.

Coding Guidelines

Inclusion Criteria

Use O22.9 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the documentation supports the diagnosis
  • Specificity is crucial; if the type of venous complication is known, a more specific code should be used

Exclusion Criteria

Do NOT use O22.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

76937CPT Code

Ultrasound, Doppler, extremity

Clinical Scenario

Used to evaluate suspected DVT in a pregnant patient.

Documentation Requirements

Document the indication for the ultrasound and findings.

Specialty Considerations

Ensure that the ultrasound is performed by a qualified provider familiar with obstetric considerations.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding venous complications, improving the accuracy of patient records and facilitating better management of care.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding venous complications, improving the accuracy of patient records and facilitating better management of care.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding venous complications, improving the accuracy of patient records and facilitating better management of care.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What should I document to support the use of O22.9?

Document the patient's symptoms, any diagnostic tests performed, and the treatment plan. If a specific venous complication is identified, use the corresponding specific code.