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S02.2XXB ICD-10-CM Code: Fracture of nasal bones, initial encounter for open fracture

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 154 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC (MDC 03)
  • MS-DRG 155 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC (MDC 03)
  • MS-DRG 156 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC (MDC 03)
  • MS-DRG 963 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC (MDC 24)
  • MS-DRG 964 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC (MDC 24)
  • MS-DRG 965 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC (MDC 24)

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

Fracture of nasal bones, initial encounter for open fracture is a billable ICD-10-CM diagnosis code (S02.2B).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S02.2XXB in the official ICD-10-CM tabular list.

Includes

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

  • injuries of ear
  • injuries of eye
  • injuries of face [any part]
  • injuries of gum
  • injuries of jaw
  • injuries of oral cavity
  • injuries of palate
  • injuries of periocular area
  • injuries of scalp
  • injuries of temporomandibular joint area
  • injuries of tongue
  • injuries of tooth

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 intracranial injury (S06.-)
  • for any associated infection

Frequently Compared Codes

The official Excludes notes on S02.2XXB 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

  • CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

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

Relationships & Classification

Official ICD-10-CM tabular notes on other codes that name S02.2XXB or its code family.

1 Excludes1 notes: S01 (via S02.-).

1 Code First instructions: R40.2 (via S02.-).

1 Use Additional Code instructions: S07 (via S02.-).

2 Code Also instructions: S04 (via S02.-), S06 (via S02.-).

Potential MS-DRG Relationships (FY2026)

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 385 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 6 MS-DRGs: DRG 154 (MDC 03), DRG 155 (MDC 03), DRG 156 (MDC 03), DRG 963 (MDC 24), DRG 964 (MDC 24), DRG 965 (MDC 24).

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

Clinical classification (AHRQ CCSR):INJ001 — Fracture of head and neck, initial encounter (default).

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

Contextual Map

Every relationship of S02.2XXB 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]
  • S00-S09 — Injuries to the head [Hierarchy]

Referenced by Excludes1 notes

  • S01 — Open wound of head [Excludes1](via S02.-): “open skull fracture (S02.- with 7th character B)” · check together

Referenced by Code First instructions

Referenced by Use Additional Code instructions

  • S07 — Crushing injury of head [Use Additional Code](via S02.-): “skull fractures (S02.-)” · check together

Referenced by Code Also instructions

  • S04 — Injury of cranial nerve [Code Also](via S02.-): “skull fracture (S02.-)” · check together
  • S06 — Intracranial injury [Code Also](via S02.-): “skull fracture (S02.-)” · check together

Clinical classification (CCSR)

  • INJ001 — Fracture of head and neck, initial encounter [CCSR]

Potential MS-DRG

  • CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”
  • DRG 154 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC (MDC 03)”
  • DRG 155 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC (MDC 03)”
  • DRG 156 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC (MDC 03)”
  • DRG 963 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC [MS-DRG]: “OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC (MDC 24)”
  • DRG 964 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC [MS-DRG]: “OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC (MDC 24)”
  • DRG 965 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC [MS-DRG]: “OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC (MDC 24)”

MDC crossing · procedures (28104)

  • MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat [MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — 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.”
  • MDC 24 — Multiple Significant Trauma [MDC crossing]: “Multiple Significant Trauma — 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.”
  • 008F0ZZ — Division of Olfactory Nerve, Open Approach [Same-MDC procedure]: “Division of Olfactory Nerve, Open Approach — grouped in MDC 03, the procedure side of this code's crossing.” · check together
  • 008F3ZZ — Division of Olfactory Nerve, Percutaneous Approach [Same-MDC procedure]: “Division of Olfactory Nerve, Percutaneous Approach — grouped in MDC 03, the procedure side of this code's crossing.” · check together
  • 008F4ZZ — Division of Olfactory Nerve, Percutaneous Endoscopic Approach [Same-MDC procedure]: “Division of Olfactory Nerve, Percutaneous Endoscopic Approach — grouped in MDC 03, the procedure side of this code's crossing.” · check together
  • 008G0ZZ — Division of Optic Nerve, Open Approach [Same-MDC procedure]: “Division of Optic Nerve, Open Approach — grouped in MDC 03, the procedure side of this code's crossing.” · check together
  • 008G3ZZ — Division of Optic Nerve, Percutaneous Approach [Same-MDC procedure]: “Division of Optic Nerve, Percutaneous Approach — grouped in MDC 03, the procedure side of this code's crossing.” · check together
  • and 28099 more

Nearest codes (40)

  • S02 — Fracture of skull and facial bones [Sibling]
  • S02.122D — Fracture of orbital roof, left side, subsequent encounter for fracture with routine healing [Sibling]
  • S02.122G — Fracture of orbital roof, left side, subsequent encounter for fracture with delayed healing [Sibling]
  • S02.122K — Fracture of orbital roof, left side, subsequent encounter for fracture with nonunion [Sibling]
  • S02.122S — Fracture of orbital roof, left side, sequela [Sibling]
  • S02.129 — Fracture of orbital roof, unspecified side [Sibling]
  • S02.129A — Fracture of orbital roof, unspecified side, initial encounter for closed fracture [Sibling]
  • S02.129B — Fracture of orbital roof, unspecified side, initial encounter for open fracture [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S02.2XXB require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S02.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S02.2XXB in its code family, with their registry titles.

  • S02.19XG — Other fracture of base of skull, subsequent encounter for fracture with delayed healing
  • S02.19XK — Other fracture of base of skull, subsequent encounter for fracture with nonunion
  • S02.19XS — Other fracture of base of skull, sequela
  • S02.2 — Fracture of nasal bones
  • S02.2XXA — Fracture of nasal bones, initial encounter for closed fracture
  • S02.2XXD — Fracture of nasal bones, subsequent encounter for fracture with routine healing
  • S02.2XXG — Fracture of nasal bones, subsequent encounter for fracture with delayed healing
  • S02.2XXK — Fracture of nasal bones, subsequent encounter for fracture with nonunion
  • S02.2XXS — Fracture of nasal bones, sequela
  • S02.3 — Fracture of orbital floor

View all codes in the S02 family