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S11.21XS ICD-10-CM Code: Laceration without foreign body of pharynx and cervical esophagus, 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 604 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC (MDC 09)
  • MS-DRG 605 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC (MDC 09)

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

Laceration without foreign body of pharynx and cervical esophagus, sequela is a billable ICD-10-CM diagnosis code (S11.21S).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S11.21XS 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

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

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:
  • spinal cord injury (S14.0, S14.1-)
  • wound infection

Frequently Compared Codes

The official Excludes notes on S11.21XS 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.

Relationships & Classification

Other codes that name S11.21XS or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

2 Use Additional Code instructions: S17 (via S11.-), T71.16 (via S11.-).

4 Code Also instructions: S13.1 (via S11.-), S14 (via S11.-), S15 (via S11.-), S16 (via S11.-).

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 604 (MDC 09), DRG 605 (MDC 09).

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

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.

Related Codes

Same injury, other encounter phase

Same injury, coded at a different phase of treatment via the 7th character.

S11.21XA — Laceration without foreign body of pharynx and cervical esophagus, initial encounter Compare S11.21XS vs S11.21XA →, S11.21XD — Laceration without foreign body of pharynx and cervical esophagus, subsequent encounter

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Injury, sequela).

+7578 more

Contextual Map

Every relationship of S11.21XS 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 Use Additional Code instructions

  • S17 — Crushing injury of neck [Use Additional Code](via S11.-): “open wound of neck (S11.-)” · check together
  • T71.16 — Asphyxiation due to hanging [Use Additional Code](via S11.-): “open wound of neck (S11.-)” · check together

Referenced by Code Also instructions

  • S13.1 — Subluxation and dislocation of cervical vertebrae [Code Also](via S11.-): “open wound of neck (S11.-)” · check together
  • S14 — Injury of nerves and spinal cord at neck level [Code Also](via S11.-): “open wound of neck (S11.-)” · check together
  • S15 — Injury of blood vessels at neck level [Code Also](via S11.-): “any associated open wound (S11.-)” · check together
  • S16 — Injury of muscle, fascia and tendon at neck level [Code Also](via S11.-): “any associated open wound (S11.-)” · check together

Clinical classification (CCSR)

  • INJ073 — Injury, sequela [CCSR]

Potential MS-DRG

  • DRG 604 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC [MS-DRG]: “TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC (MDC 09)”
  • DRG 605 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC [MS-DRG]: “TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC (MDC 09)”

MDC crossing · procedures (7376)

  • MDC 09 — Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast [MDC crossing]: “Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast — 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.”
  • 0315090 — Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Venous Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Venous Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 031509W — Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Venous Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Venous Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150A0 — Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Arterial Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Arterial Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150AW — Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Arterial Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Arterial Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150J0 — Bypass Right Axillary Artery to Right Upper Arm Artery with Synthetic Substitute, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Synthetic Substitute, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • and 7371 more

Nearest codes (40)

  • S11 — Open wound of neck [Sibling]
  • S11.13 — Puncture wound without foreign body of thyroid gland [Sibling]
  • S11.13XA — Puncture wound without foreign body of thyroid gland, initial encounter [Sibling]
  • S11.13XD — Puncture wound without foreign body of thyroid gland, subsequent encounter [Sibling]
  • S11.13XS — Puncture wound without foreign body of thyroid gland, sequela [Sibling]
  • S11.14 — Puncture wound with foreign body of thyroid gland [Sibling]
  • S11.14XA — Puncture wound with foreign body of thyroid gland, initial encounter [Sibling]
  • S11.14XD — Puncture wound with foreign body of thyroid gland, subsequent encounter [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S11.21XS require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S11.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S11.21XS in its code family, with their registry titles.

  • S11.20XD — Unspecified open wound of pharynx and cervical esophagus, subsequent encounter
  • S11.20XS — Unspecified open wound of pharynx and cervical esophagus, sequela
  • S11.21 — Laceration without foreign body of pharynx and cervical esophagus
  • S11.21XA — Laceration without foreign body of pharynx and cervical esophagus, initial encounter
  • S11.21XD — Laceration without foreign body of pharynx and cervical esophagus, subsequent encounter
  • S11.22 — Laceration with foreign body of pharynx and cervical esophagus
  • S11.22XA — Laceration with foreign body of pharynx and cervical esophagus, initial encounter
  • S11.22XD — Laceration with foreign body of pharynx and cervical esophagus, subsequent encounter
  • S11.22XS — Laceration with foreign body of pharynx and cervical esophagus, sequela
  • S11.23 — Puncture wound without foreign body of pharynx and cervical esophagus

View all codes in the S11 family