ICD-10-CM 2027
ICD-10 code for Hypopyrexia
From the official ICD-10-CM alphabetic index entry “Hypopyrexia”. Page updated September 29, 2026.
About coding Hypopyrexia
The ICD-10-CM code for Hypopyrexia is R68.0 (Hypothermia, not associated with low environmental temperature).
Within R68 (other general symptoms and signs), R68.0 is specifically for hypothermia, not associated with low environmental temperature. Related codes cover nonspecific symptoms peculiar to infancy (R68.1), dry mouth, unspecified (R68.2), Clubbing of fingers (R68.3) and other general symptoms and signs (R68.8).
Don't report R68.0 together with the conditions in its Excludes1 note: hypothermia NOS (accidental) (T68), hypothermia due to anesthesia (T88.51), hypothermia due to low environmental temperature (T68) and newborn hypothermia (P80.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for R68.0)
Common questions about Hypopyrexia ICD-10 codes
What is the ICD-10 code for Hypopyrexia?
- R68.0 — Hypothermia, not associated with low environmental temperature.
Is R68.0 billable?
- Yes. R68.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R68.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R68.0 as a principal diagnosis.
Is R68.0 a CC or MCC?
- No. R68.0 is neither a CC nor an MCC under MS-DRG v44.0.