T68.XXXA – Hypothermia, initial encounter

ICD-10-CM 2027 diagnosis code · Other and unspecified effects of external causes

Billable code

ICD-10-CM code T68.XXXA
Code
T68.XXXA (claims format: T68XXXA)
Description
Hypothermia, initial encounter
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block
T66-T78 Other and unspecified effects of external causes
Parent codes
T68

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

T68 – Hypothermia

Applicable to:
  • Accidental hypothermia
  • Hypothermia NOS
Excludes1 (not coded here):
  • hypothermia following anesthesia (T88.51)
  • hypothermia not associated with low environmental temperature (R68.0)
  • hypothermia of newborn (P80.-)
Excludes2 (not included here):
Use additional code:
  • code to identify source of exposure:
  • Exposure to excessive cold of man-made origin (W93)
  • Exposure to excessive cold of natural origin (X31)
7th character note:
  • The appropriate 7th character is to be added to code T68

Block T66-T78

Code also:
  • , if applicable, place of occurrence, such as:
  • highway rest stop (Y92.523)
  • school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
  • service areas as the place of occurrence of the external cause (Y92.52-)
  • single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
  • transport vehicle as the place of occurrence of the external cause (Y92.81-)

Related codes in T68

Frequently asked questions

What is ICD-10 code T68.XXXA?

T68.XXXA is the ICD-10-CM code for hypothermia, initial encounter, in the block T66-T78 (Other and unspecified effects of external causes).

Is T68.XXXA a billable code?

Yes. T68.XXXA is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does T68.XXXA belong to?

It belongs to category T68 – Hypothermia.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.