Icd 10 cm code for acute non intractable headache July 8, 2019 16 32 64 128 Icd 10 cm code for acute non intractable tension type headache Icd 10 cm code for acute non intractable headache unspecified headache type Headache icd 10 cm code Headache icd 9 code Headache icd 9 Headache nos icd 10