T69.9 – Effect of reduced temperature, unspecified

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

Non-billable header

ICD-10-CM code T69.9
Code
T69.9 (claims format: T699)
Description
Effect of reduced temperature, unspecified
Billable
No – use a more specific code below
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
T69

Billable codes under T69.9

T69.9 is a header code and cannot be used on claims. Choose the most specific code:

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

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.

T69 – Other effects of reduced temperature

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 each code from category T69

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-)

Index terms for T69.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in T69

Frequently asked questions

What is ICD-10 code T69.9?

T69.9 is the ICD-10-CM code for effect of reduced temperature, unspecified, in the block T66-T78 (Other and unspecified effects of external causes).

Is T69.9 a billable code?

No. T69.9 is a header code with more specific child codes; report one of the billable codes listed above.

What category does T69.9 belong to?

It belongs to category T69 – Other effects of reduced temperature.

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.