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ICD-10-CM 2027 diagnosis code

S24.149Brown-Sequard syndrome at unspecified level of thoracic spinal cord

Not billable — use a more specific codeRequires 7th character

S24.149 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Brown-Sequard syndrome at unsp level of thoracic spinal cord

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S24.149

S24.149 is the ICD-10-CM diagnosis code for Brown-Sequard syndrome at unspecified level of thoracic spinal cord. It belongs to category S24 (injury of nerves and spinal cord at thorax level), block S20-S29 (injuries to the thorax) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S24.14, choose S24.149 (unspecified level of thoracic spinal cord) only when documentation doesn't support a more specific option: T1 level of thoracic spinal cord (S24.141), T2-T6 level of thoracic spinal cord (S24.142), T7-T10 level of thoracic spinal cord (S24.143) and T11-T12 level of thoracic spinal cord (S24.144).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S24

Notes that apply from higher levels

Instructions written at a parent level also apply to S24.149.

› From S24 Injury of nerves and spinal cord at thorax level
Note
  • Code to highest level of thoracic spinal cord injury
  • Injuries to the spinal cord (S24.0 and S24.1) refer to the cord level and not bone level injury, and can affect nerve roots at and below the level given.
Excludes2
  • injury of brachial plexus (S14.3)
Code also
  • any associated:
  • fracture of thoracic vertebra (S22.0-)
  • open wound of thorax (S21.-)
  • transient paralysis (R29.5)

Broader instructions also apply from S20-S29 Injuries to the thorax and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S24.149.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S24.149

Is S24.149 billable?

No. S24.149 is a header code. Report one of its more specific subcodes instead.