Icd 10 head injury subsequent July 8, 2019 16 32 64 128 Icd 10 closed head injury subsequent encounter Icd 10 code for head injury subsequent encounter Icd 10 code for closed head injury subsequent encounter Icd 10 code for unspecified injury of head subsequent encounter Head injury icd 10 Head injury unspecified icd 10 Head injury with hematoma icd 10