Post traumatic headache unspecified icd 10 July 8, 2019 16 32 64 128 Post traumatic headache unspecified intractable icd 10 Post traumatic headache unspecified not intractable icd 10 Icd 10 code for post traumatic headache unspecified not intractable Post traumatic headache icd-10 Icd 9 post traumatic headache