Code year: FY2026 (Oct 1 2025 Sep 30 2026) Audience: Certified Coders, Auditors and Clinical Documentation Specialists Access: CCO Members Last updated: April 2026 Definition Deep vein thrombosis (DVT) is the formation of a blood clot (thrombus) within a deep vein, most commonly in the lower extremities the femoral, popliteal, iliac, tibial, or peroneal veins but also occurring in the upper extremities (brachial, radial, ulnar, axillary, subclavian, internal jugular veins) and less commonly in other sites (vena cava, renal vein, hepatic vein, cerebral sinuses)

Common symptoms can include : Tingling / numbness in hands/feet Tiredness, exhaustion, significant fatigue Brain fog, impaired thinking and memory Flaking nails, dry skin Shortness of breath Dizziness, difficulty with co-ordination, vertigo Fluctuating weight, gastrointestinal symptoms/poor digestion Irritability, problematic sleep, depression, low libido, mood swings Diagnosing Pernicious Anaemia Due to often slow-growing, generalised symptoms, PA is often overlooked and many can be without treatment for years
Supercharged Blend: Includes saline and electrolytes like sodium and potassium, hydrating you as it carries every drop of B12 to your cells
Severe vitamin B12 deficiency in pregnancy mimicking HELLP syndrome. Case Reports in Obstetrics and Gynecology 2019 (2019)