Icd 10 code for closed head injury unspecified July 8, 2019 16 32 64 128 Icd 10 code for head injury unspecified Icd 10 code for history of head injury unspecified Icd 10 cm code for head injury unspecified Icd 10 code for unspecified head injury without loss of consciousness Icd 10 code for unspecified head injury with loss of consciousness Icd 10 closed head injury