Back spasms icd 10 July 8, 2019 16 32 64 128 Lumbar back spasm icd 10 Thoracic back spasms icd 10 Upper back spasms icd 10 Low back muscle spasms icd 10 Lower back muscle spasms icd 10 Upper back muscle spasms icd 10 Back muscle sprain icd 10 Back sprain icd 10 code Back tightness icd 10