ICD-10-CM 2027 diagnosis code
S06.89ADOther specified intracranial injury with loss of consciousness status unknown, subsequent encounter
S06.89AD is a valid, billable ICD-10-CM code for other specified intracranial injury with loss of consciousness status unknown, subsequent encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Intcran inj with LOC status unknown, subsequent encounter
Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S06.89AD
S06.89AD is the ICD-10-CM diagnosis code for other specified intracranial injury with loss of consciousness status unknown, subsequent encounter. It belongs to category S06 (intracranial injury), block S00-S09 (injuries to the head) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "D" means subsequent encounter: use it for encounters after active treatment, while the patient is healing or recovering.
Use an additional code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 949 (Aftercare with CC/MCC, relative weight 1.123) and DRG 950 (Aftercare without CC/MCC, relative weight 0.7664), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It was added in FY2023, effective October 1, 2022.
7th character
Dsubsequent encounter
CC/MCC status for this injury by encounter: CC for A; Neither CC nor MCC for D, S.
Other encounter types for S06.89A:
Notes that apply from higher levels
Instructions written at a parent level also apply to S06.89AD.
› From S06.89 Other specified intracranial injury
- concussion (S06.0X-)
› From S06 Intracranial injury
- 7th characters D and S do not apply to codes in category S06 with 6th character 7 - death due to brain injury prior to regaining consciousness, or 8 - death due to other cause prior to regaining consciousness.
- traumatic brain injury
- head injury NOS (S09.90)
- code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
Broader instructions also apply from S00-S09 Injuries to the head and Chapter 19: Injury, poisoning and certain other consequences of external causes.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2023 (effective 10/1/2022): Added
- No changes since FY2023.
Common questions about S06.89AD
Is S06.89AD billable?
- Yes. S06.89AD is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "D" at the end of S06.89AD mean?
- It is the 7th character for subsequent encounter. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.
Can S06.89AD be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S06.89AD as a principal diagnosis.
Is S06.89AD a CC or MCC?
- No. S06.89AD is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does S06.89AD group to?
- S06.89AD is used in the MS-DRG v44.0 logic for MS-DRG 949 (Aftercare with CC/MCC) and MS-DRG 950 (Aftercare without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.