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S24.144D ICD-10-CM Code: Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord, subsequent encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

  • HCC 182 — Spinal Cord Disorders/Injuries

Other models: CMS-HCC V22 HCC 72

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Official Registry Overview & Definition

Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord, subsequent encounter is a billable ICD-10-CM diagnosis code (S24.144D).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S24.144D in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated:
  • fracture of thoracic vertebra (S22.0-)
  • open wound of thorax (S21.-)
  • transient paralysis (R29.5)

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Injury, spinal (cord), thoracic, Brown-Séquard syndrome, T11-T12 level

Frequently Compared Codes

The official Excludes notes on S24.144D name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Referenced by Other Codes

Clinical classification (AHRQ CCSR):INJ046 — Spinal cord injury (SCI), subsequent encounter (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 2 MS-DRGs: DRG 949 (MDC 23), DRG 950 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name S24.144D or its code family.

2 Code First instructions across 2 chapters: R29.5 (via S24.1.-), S22 (via S24.1.-).

4 Code Also instructions: S21 (via S24.1.-), S23.1 (via S24.1.-), S31 (via S24.1.-), S33.1 (via S24.1.-).

Contextual Map

Every relationship of S24.144D in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88) [Hierarchy]
  • S20-S29 — Injuries to the thorax [Hierarchy]

Referenced by Code First instructions

  • R29.5 — Transient paralysis [Code First](via S24.1.-): “any associated spinal cord injury (S14.0, S14.1-, S24.0, S24.1-, S34.0-, S34.1-)” · check together
  • S22 — Fracture of rib(s), sternum and thoracic spine [Code First](via S24.1.-): “, if applicable, spinal cord injury (S24.0-, S24.1-)” · check together

Referenced by Code Also instructions

  • S21 — Open wound of thorax [Code Also](via S24.1.-): “spinal cord injury (S24.0-, S24.1-)” · check together
  • S23.1 — Subluxation and dislocation of thoracic vertebra [Code Also](via S24.1.-): “spinal cord injury (S24.0-, S24.1-)” · check together
  • S31 — Open wound of abdomen, lower back, pelvis and external genitals [Code Also](via S24.1.-): “spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)” · check together
  • S33.1 — Subluxation and dislocation of lumbar vertebra [Code Also](via S24.1.-): “spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)” · check together

Clinical classification (CCSR)

  • INJ046 — Spinal cord injury (SCI), subsequent encounter [CCSR]

Risk adjustment (CMS-HCC)

  • HCC 182 — Spinal Cord Disorders/Injuries [CMS-HCC]

Potential MS-DRG

  • DRG 949 — AFTERCARE WITH CC/MCC [MS-DRG]: “AFTERCARE WITH CC/MCC (MDC 23)”
  • DRG 950 — AFTERCARE WITHOUT CC/MCC [MS-DRG]: “AFTERCARE WITHOUT CC/MCC (MDC 23)”

MDC crossing · procedures (1235)

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • and 1230 more

Index entries

  • Injury, spinal (cord), thoracic, Brown-Séquard syndrome, T11-T12 level[Index term]

Nearest codes (40)

  • S24 — Injury of nerves and spinal cord at thorax level [Sibling]
  • S24.134S — Anterior cord syndrome at T11-T12 level of thoracic spinal cord, sequela [Sibling]
  • S24.139 — Anterior cord syndrome at unspecified level of thoracic spinal cord [Sibling]
  • S24.139A — Anterior cord syndrome at unspecified level of thoracic spinal cord, initial encounter [Sibling]
  • S24.139D — Anterior cord syndrome at unspecified level of thoracic spinal cord, subsequent encounter [Sibling]
  • S24.139S — Anterior cord syndrome at unspecified level of thoracic spinal cord, sequela [Sibling]
  • S24.14 — Brown-Séquard syndrome of thoracic spinal cord [Sibling]
  • S24.141 — Brown-Séquard syndrome at T1 level of thoracic spinal cord [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S24.144D require a 7th character?

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S24.144D in its code family, with their registry titles.

  • S24.143A — Brown-Séquard syndrome at T7-T10 level of thoracic spinal cord, initial encounter
  • S24.143D — Brown-Séquard syndrome at T7-T10 level of thoracic spinal cord, subsequent encounter
  • S24.143S — Brown-Séquard syndrome at T7-T10 level of thoracic spinal cord, sequela
  • S24.144 — Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord
  • S24.144A — Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord, initial encounter
  • S24.144S — Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord, sequela
  • S24.149 — Brown-Séquard syndrome at unspecified level of thoracic spinal cord
  • S24.149A — Brown-Séquard syndrome at unspecified level of thoracic spinal cord, initial encounter
  • S24.149D — Brown-Séquard syndrome at unspecified level of thoracic spinal cord, subsequent encounter
  • S24.149S — Brown-Séquard syndrome at unspecified level of thoracic spinal cord, sequela

View all codes in the S24 family