Acute intractable pain icd 10 July 8, 2019 16 32 64 128 Acute intractable abdominal pain icd 10 Acute intractable back pain icd 10 Acute epigastric abdominal pain intractable icd 10 Acute on chronic intractable back pain icd 10 Acute on chronic intractable low back pain icd 10 Icd 10 code for acute intractable pain