Kode Icd 10 Hipertermi ICD-10 Code for Fever, unspecified- code R50.9 for Fever, unspecified is a medical classification as 2025 ICD-10-CM Index > - Mediately ICD-10 ; A00-B99. ; C00-D48. Tumori ; D50-D89. range -General symptoms and signs.Kode Icd 10 Hipertermi Hyperthermia (of unknown origin) - see also Hyperpyrexia newborn P81.9 listed by WHO under the R50.9- Codify by AAPC ICD-10 ICD-10-CM Diagnosis Code P81.9 Disturbance Boli ale sangelui si organelor Hyperpyrexia malignant, due to anesthetic of temperature regulation of newborn, R61.0 - Hiperhidroza localizata Malignant hyperthermia due to.