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T33.62XA ICD-10-CM Code: Superficial frostbite 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

Superficial frostbite of left hip and thigh, initial encounter is a billable ICD-10-CM diagnosis code (T33.62A).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for T33.62XA in the official ICD-10-CM tabular list.

Includes

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

  • frostbite with partial thickness skin loss

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 T33.62XA 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.

Relationships & Classification

Other codes that name T33.62XA 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.

1 Excludes1 notes: T07 (via T33.-).

112 Excludes2 notes across 2 chapters: I73 (via T33.-), S00 (via T33.-), S00-S09 (via T33.-), S01 (via T33.-), S02 (via T33.-), S03 (via T33.-), S04 (via T33.-), S05 (via T33.-), S06 (via T33.-), S07 (via T33.-) and 102 more.

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.

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.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

T33.531A — Superficial frostbite of right finger(s), initial encounter, T33.532A — Superficial frostbite of left finger(s), initial encounter, T33.539A — Superficial frostbite of unspecified finger(s), initial encounter, T33.60XA — Superficial frostbite of unspecified hip and thigh, initial encounter, T33.61XA — Superficial frostbite of right hip and thigh, initial encounter, T33.70XA — Superficial frostbite of unspecified knee and lower leg, initial encounter, T33.71XA — Superficial frostbite of right knee and lower leg, initial encounter, T33.72XA — Superficial frostbite of left knee and lower leg, initial encounter, T33.811A — Superficial frostbite of right ankle, initial encounter, T33.812A — Superficial frostbite of left ankle, initial encounter, +66 more

Same condition, opposite side

Same category and title, differing only in which side of the body is affected.

T33.60XA — Superficial frostbite of unspecified hip and thigh, initial encounter (unspecified), T33.61XA — Superficial frostbite of right hip and thigh, initial encounter (right)

Same injury, other encounter phase

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

T33.62XD — Superficial frostbite of left hip and thigh, subsequent encounter, T33.62XS — Superficial frostbite of left hip and thigh, sequela

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Effect of other external causes, initial encounter).

T33.531A — Superficial frostbite of right finger(s), initial encounter, T33.532A — Superficial frostbite of left finger(s), initial encounter, T33.539A — Superficial frostbite of unspecified finger(s), initial encounter, T33.60XA — Superficial frostbite of unspecified hip and thigh, initial encounter, T33.61XA — Superficial frostbite of right hip and thigh, initial encounter, T33.70XA — Superficial frostbite of unspecified knee and lower leg, initial encounter, T33.71XA — Superficial frostbite of right knee and lower leg, initial encounter, T33.72XA — Superficial frostbite of left knee and lower leg, initial encounter, T33.811A — Superficial frostbite of right ankle, initial encounter, T33.812A — Superficial frostbite of left ankle, initial encounter, +159 more

Contextual Map

Every relationship of T33.62XA 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]

Referenced by Excludes1 notes

  • T07 — Unspecified multiple injuries [Excludes1](via T33.-): “frostbite (T33-T34)” · check together

Referenced by Excludes2 notes (112)

  • I73 — Other peripheral vascular diseases [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S00 — Superficial injury of head [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S00-S09 — Injuries to the head (S00-S09) [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S01 — Open wound of head [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S02 — Fracture of skull and facial bones [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S03 — Dislocation and sprain of joints and ligaments of head [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S04 — Injury of cranial nerve [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • S05 — Injury of eye and orbit [Excludes2](via T33.-): “frostbite (T33-T34)” · check together
  • and 104 more

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)

  • T33 — Superficial frostbite [Sibling]
  • T33.531D — Superficial frostbite of right finger(s), subsequent encounter [Sibling]
  • T33.531S — Superficial frostbite of right finger(s), sequela [Sibling]
  • T33.532 — Superficial frostbite of left finger(s) [Sibling]
  • T33.532A — Superficial frostbite of left finger(s), initial encounter [Sibling]
  • T33.532D — Superficial frostbite of left finger(s), subsequent encounter [Sibling]
  • T33.532S — Superficial frostbite of left finger(s), sequela [Sibling]
  • T33.539 — Superficial frostbite of unspecified finger(s) [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does T33.62XA require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category T33.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to T33.62XA in its code family, with their registry titles.

  • T33.61 — Superficial frostbite of right hip and thigh
  • T33.61XA — Superficial frostbite of right hip and thigh, initial encounter
  • T33.61XD — Superficial frostbite of right hip and thigh, subsequent encounter
  • T33.61XS — Superficial frostbite of right hip and thigh, sequela
  • T33.62 — Superficial frostbite of left hip and thigh
  • T33.62XD — Superficial frostbite of left hip and thigh, subsequent encounter
  • T33.62XS — Superficial frostbite of left hip and thigh, sequela
  • T33.7 — Superficial frostbite of knee and lower leg
  • T33.70 — Superficial frostbite of unspecified knee and lower leg
  • T33.70XA — Superficial frostbite of unspecified knee and lower leg, initial encounter

View all codes in the T33 family