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2025 ICD-10-CM code O22.21

Superficial thrombophlebitis in pregnancy, first trimester.

Use additional code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Treatment of superficial thrombophlebitis during pregnancy is considered medically necessary to prevent potential complications such as deep vein thrombosis or pulmonary embolism.

Diagnosis and management of superficial thrombophlebitis during pregnancy, including assessment of risk factors, providing appropriate treatment and monitoring for complications.

IMPORTANT:Use additional code to identify the specific type of superficial thrombophlebitis (I80.-)

In simple words: This code indicates a blood clot in a vein close to the skin's surface in a pregnant woman during the first three months of pregnancy.

This code describes a condition where there is inflammation and clot formation in the superficial veins of a pregnant woman during her first trimester (less than 14 weeks).

Example 1: A pregnant woman at 10 weeks gestation presents with pain, redness, and swelling in a superficial vein in her leg. Diagnosis of superficial thrombophlebitis is confirmed, and she is treated with warm compresses and elevation of the affected limb., A pregnant woman at 12 weeks gestation with a history of varicose veins develops superficial thrombophlebitis in her left leg during a prolonged car trip., A 35-year-old pregnant woman at 8 weeks gestation presents with localized pain, tenderness, and redness along a superficial vein in her right lower extremity.Ultrasound confirms the diagnosis of superficial thrombophlebitis.

Documentation should include location and laterality of the thrombophlebitis, presence of any associated symptoms (e.g., pain, swelling, redness, warmth), and treatment provided.

** This code is to be used only on the maternal record, never on the newborn record.

** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.

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