Skip to main content

T34.62XA ICD-10-CM Code: Frostbite with tissue necrosis of left hip and thigh, 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 922 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC (MDC 21)
  • MS-DRG 923 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC (MDC 21)

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

Frostbite with tissue necrosis of left hip and thigh, initial encounter is a billable ICD-10-CM diagnosis code (T34.62A).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for T34.62XA in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

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

Frequently Compared Codes

The official Excludes notes on T34.62XA 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.

Contextual Map

Every relationship of T34.62XA 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]
  • T33-T34 — Frostbite [Hierarchy]

Clinical classification (CCSR)

  • INJ021 — Effect of other external causes, 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 922 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC [MS-DRG]: “OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC (MDC 21)”
  • DRG 923 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC [MS-DRG]: “OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC (MDC 21)”

MDC crossing · procedures (32029)

  • MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs [MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — 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 21, 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 21, 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 21, 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 21, 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 21, the procedure side of this code's crossing.” · check together
  • and 32024 more

Nearest codes (40)

  • T34 — Frostbite with tissue necrosis [Sibling]
  • T34.531D — Frostbite with tissue necrosis of right finger(s), subsequent encounter [Sibling]
  • T34.531S — Frostbite with tissue necrosis of right finger(s), sequela [Sibling]
  • T34.532 — Frostbite with tissue necrosis of left finger(s) [Sibling]
  • T34.532A — Frostbite with tissue necrosis of left finger(s), initial encounter [Sibling]
  • T34.532D — Frostbite with tissue necrosis of left finger(s), subsequent encounter [Sibling]
  • T34.532S — Frostbite with tissue necrosis of left finger(s), sequela [Sibling]
  • T34.539 — Frostbite with tissue necrosis of unspecified finger(s) [Sibling]
  • and 32 more

Relationships & Classification

Clinical classification (AHRQ CCSR):INJ021 — Effect of other external causes, 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 77 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 2 MS-DRGs: DRG 922 (MDC 21), DRG 923 (MDC 21).

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

Frequently Asked Questions (FAQ) & Clinical Guidance

Does T34.62XA require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category T34.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to T34.62XA in its code family, with their registry titles.

  • T34.61 — Frostbite with tissue necrosis of right hip and thigh
  • T34.61XA — Frostbite with tissue necrosis of right hip and thigh, initial encounter
  • T34.61XD — Frostbite with tissue necrosis of right hip and thigh, subsequent encounter
  • T34.61XS — Frostbite with tissue necrosis of right hip and thigh, sequela
  • T34.62 — Frostbite with tissue necrosis of left hip and thigh
  • T34.62XD — Frostbite with tissue necrosis of left hip and thigh, subsequent encounter
  • T34.62XS — Frostbite with tissue necrosis of left hip and thigh, sequela
  • T34.7 — Frostbite with tissue necrosis of knee and lower leg
  • T34.70 — Frostbite with tissue necrosis of unspecified knee and lower leg
  • T34.70XA — Frostbite with tissue necrosis of unspecified knee and lower leg, initial encounter

View all codes in the T34 family