R31.1
ICD-10-CMThis code describes the persistent presence of microscopic blood in the urine without an identifiable underlying pathological cause, such as infection, stones, or malignancy. It is considered benign and often asymptomatic, identified through routine urinalysis.
Assign this code when documentation confirms microscopic hematuria that has been thoroughly investigated, and all other potential causes have been ruled out. This diagnosis is typically made after a comprehensive workup, including imaging and cystoscopy, yields no specific etiology.
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