HCC 398 (V28)
Major Head Injury with Loss of Consciousness < 1 Hour or Unspecified
57 ICD-10-CM codes map to this category in the CMS-HCC V28 risk adjustment model for payment year 2027. All 115 HCCs
Overridden by: HCC 397 (Major Head Injury with Loss of Consciousness > 1 Hour). If the patient also has one of these, only the higher HCC counts.
Overrides: HCC 202 (Coma, Brain Compression/Anoxic Damage), HCC 399 (Major Head Injury without Loss of Consciousness).
| S06.1X1A | Traumatic cerebral edema with loss of consciousness of 30 minutes or less, initial encounter |
| S06.1X2A | Traumatic cerebral edema with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.1X9A | Traumatic cerebral edema with loss of consciousness of unspecified duration, initial encounter |
| S06.2X1A | Diffuse traumatic brain injury with loss of consciousness of 30 minutes or less, initial encounter |
| S06.2X2A | Diffuse traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.2X9A | Diffuse traumatic brain injury with loss of consciousness of unspecified duration, initial encounter |
| S06.301A | Unspecified focal traumatic brain injury with loss of consciousness of 30 minutes or less, initial encounter |
| S06.302A | Unspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.309A | Unspecified focal traumatic brain injury with loss of consciousness of unspecified duration, initial encounter |
| S06.311A | Contusion and laceration of right cerebrum with loss of consciousness of 30 minutes or less, initial encounter |
| S06.312A | Contusion and laceration of right cerebrum with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.319A | Contusion and laceration of right cerebrum with loss of consciousness of unspecified duration, initial encounter |
| S06.321A | Contusion and laceration of left cerebrum with loss of consciousness of 30 minutes or less, initial encounter |
| S06.322A | Contusion and laceration of left cerebrum with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.329A | Contusion and laceration of left cerebrum with loss of consciousness of unspecified duration, initial encounter |
| S06.331A | Contusion and laceration of cerebrum, unspecified, with loss of consciousness of 30 minutes or less, initial encounter |
| S06.332A | Contusion and laceration of cerebrum, unspecified, with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.339A | Contusion and laceration of cerebrum, unspecified, with loss of consciousness of unspecified duration, initial encounter |
| S06.341A | Traumatic hemorrhage of right cerebrum with loss of consciousness of 30 minutes or less, initial encounter |
| S06.342A | Traumatic hemorrhage of right cerebrum with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.349A | Traumatic hemorrhage of right cerebrum with loss of consciousness of unspecified duration, initial encounter |
| S06.351A | Traumatic hemorrhage of left cerebrum with loss of consciousness of 30 minutes or less, initial encounter |
| S06.352A | Traumatic hemorrhage of left cerebrum with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.359A | Traumatic hemorrhage of left cerebrum with loss of consciousness of unspecified duration, initial encounter |
| S06.361A | Traumatic hemorrhage of cerebrum, unspecified, with loss of consciousness of 30 minutes or less, initial encounter |
| S06.362A | Traumatic hemorrhage of cerebrum, unspecified, with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.369A | Traumatic hemorrhage of cerebrum, unspecified, with loss of consciousness of unspecified duration, initial encounter |
| S06.371A | Contusion, laceration, and hemorrhage of cerebellum with loss of consciousness of 30 minutes or less, initial encounter |
| S06.372A | Contusion, laceration, and hemorrhage of cerebellum with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.379A | Contusion, laceration, and hemorrhage of cerebellum with loss of consciousness of unspecified duration, initial encounter |
| S06.381A | Contusion, laceration, and hemorrhage of brainstem with loss of consciousness of 30 minutes or less, initial encounter |
| S06.382A | Contusion, laceration, and hemorrhage of brainstem with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.389A | Contusion, laceration, and hemorrhage of brainstem with loss of consciousness of unspecified duration, initial encounter |
| S06.4X1A | Epidural hemorrhage with loss of consciousness of 30 minutes or less, initial encounter |
| S06.4X2A | Epidural hemorrhage with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.4X9A | Epidural hemorrhage with loss of consciousness of unspecified duration, initial encounter |
| S06.5X1A | Traumatic subdural hemorrhage with loss of consciousness of 30 minutes or less, initial encounter |
| S06.5X2A | Traumatic subdural hemorrhage with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.5X9A | Traumatic subdural hemorrhage with loss of consciousness of unspecified duration, initial encounter |
| S06.6X1A | Traumatic subarachnoid hemorrhage with loss of consciousness of 30 minutes or less, initial encounter |
| S06.6X2A | Traumatic subarachnoid hemorrhage with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.6X9A | Traumatic subarachnoid hemorrhage with loss of consciousness of unspecified duration, initial encounter |
| S06.811A | Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, initial encounter |
| S06.812A | Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.819A | Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of unspecified duration, initial encounter |
| S06.821A | Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, initial encounter |
| S06.822A | Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.829A | Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of unspecified duration, initial encounter |
| S06.891A | Other specified intracranial injury with loss of consciousness of 30 minutes or less, initial encounter |
| S06.892A | Other specified intracranial injury with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.899A | Other specified intracranial injury with loss of consciousness of unspecified duration, initial encounter |
| S06.8A1A | Primary blast injury of brain, not elsewhere classified with loss of consciousness of 30 minutes or less, initial encounter |
| S06.8A2A | Primary blast injury of brain, not elsewhere classified with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.8A9A | Primary blast injury of brain, not elsewhere classified with loss of consciousness of unspecified duration, initial encounter |
| S06.9X1A | Unspecified intracranial injury with loss of consciousness of 30 minutes or less, initial encounter |
| S06.9X2A | Unspecified intracranial injury with loss of consciousness of 31 minutes to 59 minutes, initial encounter |
| S06.9X9A | Unspecified intracranial injury with loss of consciousness of unspecified duration, initial encounter |