R82.91
Other chromoabnormalities of urine
Clinical Classification Guidelines
Inclusion Terms
- Chromoconversion (dipstick)
- Idiopathic dipstick converts positive for blood with no cellular forms in sediment
Excludes Type 1
- hemoglobinuria (R82.3)
- myoglobinuria (R82.1)
Medical Intelligence & Overview
ICD-10 code R82.91 refers to 'Other chromoabnormalities of urine,' a condition identified through laboratory testing when abnormal pigments or coloration appear in urine without clear cellular causes. A common example includes chromoconversion observed during dipstick testing, where urine tests show positive for blood but no blood cells are seen under microscopic examination. This phenomenon could indicate various underlying issues or may occur without significant health concerns, often requiring detailed evaluation for accurate diagnosis and management.
Causes & Symptoms
Clinical Causes: Presence of abnormal pigments in urine, such as myoglobin or hemoglobin, which can produce discoloration without actual blood presence. Medication intake or consumption of certain foods that influence urine coloration. Liver disease or metabolic disorders affecting pigment processing. Hemolytic anemias leading to the breakdown of red blood cells and release of hemoglobin into urine. Dehydration or concentrated urine samples that alter color perception. Instrumental or procedural factors during urine testing that may cause false-positive results. Idiopathic cases where no specific cause is identified, often termed 'dipstick converts positive for blood with no cellular forms in sediment.'
Key Symptoms: Change in urine color, such as dark or reddish hue. Possible presence of foamy urine if associated with proteinuria. No specific symptoms in many cases, especially if the abnormality is mild or incidental.
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a combination of laboratory tests and clinical evaluation:
Treatment Protocols: Management depends on the underlying cause identified during evaluation:
Clinical Advice & FAQs
Billing Guidance
Is R82.91 a billable ICD-10 code?
Yes, R82.91 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report R82.91?
Clinical documentation must specify the nature of Other chromoabnormalities of urine and any associated comorbidities for accurate reporting.
Cite this Clinical Reference