L4 l5 lumbar canal stenosis icd 10 July 8, 2019 16 32 64 128 L3 l4 l4 l5 lumbar canal stenosis icd 10 L4 l5 l5 s1 lumbar canal stenosis icd 10 Icd 10 code for l4 l5 lumbar canal stenosis L4-l5 stenosis icd 10