Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes R00-R99 – Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) > 2024 ICD-10-CM Codes R70-R79 – Abnormal findings on examination of blood, without diagnosis (R70-R79) > 2024 ICD-10-CM Codes R78 – Findings of drugs and other substances, not normally found in blood (R78) > 2024 ICD-10-CM Codes R78.7 – Finding of abnormal level of heavy metals in blood (R78.7)