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ICD-10/S04.62XA

S04.62XA ICD-10-CM Code: Injury of acoustic nerve, left side, initial 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.

  • 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

Injury of acoustic nerve, left side, initial encounter is a billable ICD-10-CM diagnosis code (S04.62A).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S04.62XA 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 First

Underlying conditions that must be sequenced before this code.

  • any associated intracranial injury (S06.-)

Code Also

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

  • any associated:
  • open wound of head (S01.-)
  • skull fracture (S02.-)
  • for any associated infection

Change history

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

Verify Before Coding

  • Billable — reportable as written.
  • 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.

Contextual Map

Every relationship of S04.62XA 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 Code Also instructions

  • S01 — Open wound of head [Code Also](via S04.-): “injury of cranial nerve (S04.-)” · check together

Clinical classification (CCSR)

  • INJ025 — Injury to nerves, muscles and tendons, 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)

  • S04 — Injury of cranial nerve [Sibling]
  • S04.50XD — Injury of facial nerve, unspecified side, subsequent encounter [Sibling]
  • S04.50XS — Injury of facial nerve, unspecified side, sequela [Sibling]
  • S04.51 — Injury of facial nerve, right side [Sibling]
  • S04.51XA — Injury of facial nerve, right side, initial encounter [Sibling]
  • S04.51XD — Injury of facial nerve, right side, subsequent encounter [Sibling]
  • S04.51XS — Injury of facial nerve, right side, sequela [Sibling]
  • S04.52 — Injury of facial nerve, left side [Sibling]
  • and 32 more

Referenced by Other Codes

Clinical classification (AHRQ CCSR):INJ025 — Injury to nerves, muscles and tendons, 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.

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 10 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.

Official ICD-10-CM tabular notes on other codes that name S04.62XA or its code family.

1 Code Also instructions: S01 (via S04.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S04.62XA require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S04.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S04.62XA in its code family, with their registry titles.

  • S04.61 — Injury of acoustic nerve, right side
  • S04.61XA — Injury of acoustic nerve, right side, initial encounter
  • S04.61XD — Injury of acoustic nerve, right side, subsequent encounter
  • S04.61XS — Injury of acoustic nerve, right side, sequela
  • S04.62 — Injury of acoustic nerve, left side
  • S04.62XD — Injury of acoustic nerve, left side, subsequent encounter
  • S04.62XS — Injury of acoustic nerve, left side, sequela
  • S04.7 — Injury of accessory nerve
  • S04.70 — Injury of accessory nerve, unspecified side
  • S04.70XA — Injury of accessory nerve, unspecified side, initial encounter

View all codes in the S04 family