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ICD-10 Guide
ICD-10 CodesO22.22

O22.22

Billable

Superficial thrombophlebitis in pregnancy, second trimester

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

Code Description

ICD-10 O22.22 is a billable code used to indicate a diagnosis of superficial thrombophlebitis in pregnancy, second trimester.

Key Diagnostic Point:

Superficial thrombophlebitis is an inflammatory condition of the veins, often associated with the formation of a thrombus (blood clot) in the superficial venous system. In pregnant women, particularly during the second trimester, the risk of venous complications increases due to physiological changes such as increased blood volume, hormonal influences, and pressure from the growing uterus on pelvic veins. Symptoms typically include localized pain, tenderness, and swelling along the affected vein, which may be palpable as a cord-like structure. Diagnosis is primarily clinical, supported by ultrasound if necessary to rule out deep vein thrombosis (DVT). Management may involve conservative measures such as compression stockings, elevation of the affected limb, and pain relief. In some cases, anticoagulation therapy may be indicated, especially if there is a risk of progression to DVT. It is crucial for healthcare providers to monitor these patients closely, as untreated superficial thrombophlebitis can lead to more serious complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between superficial thrombophlebitis and deep vein thrombosis.
  • Understanding the implications of anticoagulation therapy during pregnancy.
  • Recognizing the physiological changes in pregnancy that contribute to venous complications.
  • Documenting the clinical presentation accurately to support coding.

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings.
  • Failure to document the rationale for anticoagulation therapy.
  • Misclassification of superficial thrombophlebitis as deep vein thrombosis.
  • Lack of follow-up documentation regarding the patient's progress.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed clinical notes including symptoms, physical examination findings, and treatment plans.

Common Clinical Scenarios

A pregnant patient presenting with leg pain and swelling, diagnosed with superficial thrombophlebitis.

Billing Considerations

Consideration of the patient's obstetric history and any previous venous complications.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of maternal and fetal health, including any high-risk factors.

Common Clinical Scenarios

Management of a high-risk pregnant patient with a history of venous thromboembolism.

Billing Considerations

Close monitoring of anticoagulation therapy and its effects on both mother and fetus.

Coding Guidelines

Inclusion Criteria

Use O22.22 When
  • Follow the official ICD
  • CM coding guidelines for obstetric conditions, ensuring accurate documentation of the trimester and clinical findings

Exclusion Criteria

Do NOT use O22.22 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, level 3

Clinical Scenario

Used for follow-up visits for patients with superficial thrombophlebitis.

Documentation Requirements

Document the patient's symptoms, treatment plan, and any changes in condition.

Specialty Considerations

Obstetricians should ensure that the visit is clearly related to the management of the pregnancy.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of venous complications in pregnancy, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of venous complications in pregnancy, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What are the common symptoms of superficial thrombophlebitis in pregnancy?

Common symptoms include localized pain, tenderness, swelling, and a palpable cord-like structure along the affected vein. Patients may also experience redness and warmth in the area.