T33.40XD — Superficial frostbite of unspecified arm, subsequent 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 (FY2026), Appendix B.

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.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Superficial frostbite of unspecified arm, subsequent encounter is a billable ICD-10-CM diagnosis code (T33.40D).

Sequencing, inclusion, and exclusion notes published for T33.40XD in the official ICD-10-CM tabular list.

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

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

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

Official ICD-10-CM classifications closest to T33.40XD in its code family, with their registry titles.

T33.3XXD — Superficial frostbite of abdominal wall, lower back and pelvis, subsequent encounter
T33.3XXS — Superficial frostbite of abdominal wall, lower back and pelvis, sequela
T33.4 — Superficial frostbite of arm
T33.40 — Superficial frostbite of unspecified arm
T33.40XA — Superficial frostbite of unspecified arm, initial encounter
T33.40XS — Superficial frostbite of unspecified arm, sequela
T33.41 — Superficial frostbite of right arm
T33.41XA — Superficial frostbite of right arm, initial encounter
T33.41XD — Superficial frostbite of right arm, subsequent encounter
T33.41XS — Superficial frostbite of right arm, sequela