Low back pain unspecified back pain laterality icd 10 July 8, 2019 16 32 64 128 Acute low back pain without sciatica unspecified back pain laterality icd 10 Chronic low back pain with bilateral sciatica unspecified back pain laterality icd 10 Low back pain unspecified icd 10 Low back pain icd 9 Low back icd 10 Lower back pain icd 9