4 In the tables noted below, there are reference ranges for determining which deficiency may be present

Key index paths: Neuropathy, neuropathic main term subterm peripheral subterm by etiology (alcoholic, diabetic, drug-induced, hereditary, idiopathic, inflammatory, ischemic, toxic) Neuropathy, peripheral, diabetic see E08E13 with .40.49 Polyneuropathy main term subterms by etiology (alcoholic G62.1, critical illness G62.81, diabetic [see Diabetes, with neuropathy], drug-induced G62.0, hereditary G60.x, idiopathic G60.9, inflammatory G61.x, radiation G62.82, toxic G62.2) Syndrome, carpal tunnel G56.0- Syndrome, tarsal tunnel G57.5- Syndrome, Guillain-Barr G61.0 Neuropathy, CIDP G61.81 Disease, Charcot-Marie-Tooth G60.0 Meralgia paresthetica G57.1- Neuralgia, post-herpetic B02.29 (other PHN) or B02.22 (trigeminal) Degeneration, subacute combined G32.0 Dysautonomia G90.1 (familial), G90.09 (other idiopathic) Syndrome, Refsum G60.1 Coder Note When the index leads to see also Diabetes, with, neuropathy always confirm documentation of the specific type of diabetes (Type 1, Type 2, secondary, drug-induced) before selecting the E-code subcategory

Polymorphisms in various genes involved in vitamin B 12 metabolism, including the genes encoding the intrinsic factor-cobalamin receptor (60) and the holo-transcobalamin receptor (61), have been associated with increased NTD risk in some studies
But it was far too sudden and really started getting worse after Covid
This approach enables timely treatment whilst reducing the need for frequent healthcare appointments
Without enough B12, this process slows downleading to fatigue, sluggish metabolism, and difficulty losing weight