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ICD-10/S14.146S

S14.146S ICD-10-CM Code: Brown-Séquard syndrome at C6 level of cervical spinal cord, sequela

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.

  • MS-DRG 052 — SPINAL DISORDERS AND INJURIES WITH CC/MCC (MDC 01)
  • MS-DRG 053 — SPINAL DISORDERS AND INJURIES WITHOUT CC/MCC (MDC 01)

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.

Official Registry Overview & Definition

Brown-Séquard syndrome at C6 level of cervical spinal cord, sequela is a billable ICD-10-CM diagnosis code (S14.146S).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S14.146S in the official ICD-10-CM tabular list.

Includes

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

  • injuries of nape
  • injuries of supraclavicular region
  • injuries of throat

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 cervical vertebra (S12.0--S12.6.-)
  • open wound of neck (S11.-)
  • transient paralysis (R29.5)

Change history

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

Verify Before Coding

  • Billable — reportable as written.

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

Contextual Map

Every relationship of S14.146S 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]
  • S10-S19 — Injuries to the neck [Hierarchy]

Referenced by Code First instructions

  • R29.5 — Transient paralysis [Code First](via S14.1.-): “any associated spinal cord injury (S14.0, S14.1-, S24.0, S24.1-, S34.0-, S34.1-)” · check together
  • S12 — Fracture of cervical vertebra and other parts of neck [Code First](via S14.1.-): “any associated cervical spinal cord injury (S14.0, S14.1-)” · check together

Referenced by Use Additional Code instructions

  • S17 — Crushing injury of neck [Use Additional Code](via S14.1.-): “spinal cord injury (S14.0, S14.1-)” · check together

Referenced by Code Also instructions

  • S11 — Open wound of neck [Code Also](via S14.1.-): “spinal cord injury (S14.0, S14.1-)” · check together
  • S13.1 — Subluxation and dislocation of cervical vertebrae [Code Also](via S14.1.-): “spinal cord injury (S14.1-)” · check together

Clinical classification (CCSR)

  • INJ073 — Injury, sequela [CCSR]

Potential MS-DRG

  • DRG 052 — SPINAL DISORDERS AND INJURIES WITH CC/MCC [MS-DRG]: “SPINAL DISORDERS AND INJURIES WITH CC/MCC (MDC 01)”
  • DRG 053 — SPINAL DISORDERS AND INJURIES WITHOUT CC/MCC [MS-DRG]: “SPINAL DISORDERS AND INJURIES WITHOUT CC/MCC (MDC 01)”

MDC crossing · procedures (8892)

  • MDC 01 — Diseases and Disorders of the Nervous System [MDC crossing]: “Diseases and Disorders of the Nervous System — 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.”
  • 0016070 — Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016071 — Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016072 — Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016073 — Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016074 — Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • and 8887 more

Index entries

  • Injury, spinal (cord), cervical (neck), Brown-Séquard syndrome, C6 level[Index term]

Nearest codes (40)

  • S14 — Injury of nerves and spinal cord at neck level [Sibling]
  • S14.141S — Brown-Séquard syndrome at C1 level of cervical spinal cord, sequela [Sibling]
  • S14.142 — Brown-Séquard syndrome at C2 level of cervical spinal cord [Sibling]
  • S14.142A — Brown-Séquard syndrome at C2 level of cervical spinal cord, initial encounter [Sibling]
  • S14.142D — Brown-Séquard syndrome at C2 level of cervical spinal cord, subsequent encounter [Sibling]
  • S14.142S — Brown-Séquard syndrome at C2 level of cervical spinal cord, sequela [Sibling]
  • S14.143 — Brown-Séquard syndrome at C3 level of cervical spinal cord [Sibling]
  • S14.143A — Brown-Séquard syndrome at C3 level of cervical spinal cord, initial encounter [Sibling]
  • and 32 more

Referenced by Other Codes

Clinical classification (AHRQ CCSR):INJ073 — Injury, sequela (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 052 (MDC 01), DRG 053 (MDC 01).

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 S14.146S or its code family.

2 Code First instructions across 2 chapters: R29.5 (via S14.1.-), S12 (via S14.1.-).

1 Use Additional Code instructions: S17 (via S14.1.-).

2 Code Also instructions: S11 (via S14.1.-), S13.1 (via S14.1.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S14.146S require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S14.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S14.146S in its code family, with their registry titles.

  • S14.145D — Brown-Séquard syndrome at C5 level of cervical spinal cord, subsequent encounter
  • S14.145S — Brown-Séquard syndrome at C5 level of cervical spinal cord, sequela
  • S14.146 — Brown-Séquard syndrome at C6 level of cervical spinal cord
  • S14.146A — Brown-Séquard syndrome at C6 level of cervical spinal cord, initial encounter
  • S14.146D — Brown-Séquard syndrome at C6 level of cervical spinal cord, subsequent encounter
  • S14.147 — Brown-Séquard syndrome at C7 level of cervical spinal cord
  • S14.147A — Brown-Séquard syndrome at C7 level of cervical spinal cord, initial encounter
  • S14.147D — Brown-Séquard syndrome at C7 level of cervical spinal cord, subsequent encounter
  • S14.147S — Brown-Séquard syndrome at C7 level of cervical spinal cord, sequela
  • S14.148 — Brown-Séquard syndrome at C8 level of cervical spinal cord

View all codes in the S14 family

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), cervical (neck), Brown-Séquard syndrome, C6 level