C92.42
Acute promyelocytic leukemia, in relapse
Clinical Classification Guidelines
Medical Intelligence & Overview
Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia characterized by the rapid growth of abnormal promyelocytes in the bone marrow and blood. When this condition reoccurs after initial treatment, it is classified as a relapse. The ICD-10 code C92.42 specifically refers to cases where APL has returned after remission. Recognizing the features of relapse and understanding the disease process is crucial for patients and healthcare providers, aiding in timely management and planning further treatment options.
Causes & Symptoms
Clinical Causes: Incomplete eradication of leukemia cells during initial treatment Development of resistant leukemia cell clones Genetic mutations that promote disease recurrence Poor response to initial therapy Presence of residual disease that escapes detection Alterations in supportive care that may influence remission durability
Key Symptoms: Recurrence of symptoms typical to leukemia such as fatigue and weakness Unexplained fever or infections Easy bruising or bleeding due to low platelet count Persistent or recurrent anemia Bone or joint pain Shortness of breath or persistent cough Swollen lymph nodes or spleen Sudden weight loss or night sweats
Diagnostic & Treatment
Diagnosis Path: Bone marrow biopsy to detect the presence of abnormal promyelocytes Blood tests to evaluate the number and morphology of blood cells Cytogenetic studies to identify specific genetic abnormalities such as the PML-RARA fusion gene Imaging tests like ultrasound or CT scans if organ involvement, such as spleen or lymph nodes, is suspected Monitoring for minimal residual disease (MRD) using molecular techniques
Treatment Protocols: Chemotherapy to eliminate residual leukemia cells Targeted therapy using all-trans retinoic acid (ATRA) combined with arsenic trioxide, which are highly effective in APL Stem cell or bone marrow transplant in suitable cases Supportive care to manage symptoms and complications, such as blood transfusions and infection prevention measures Participation in clinical trials exploring novel agents and combinations
Clinical Advice & FAQs
Billing Guidance
Is C92.42 a billable ICD-10 code?
Yes, C92.42 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report C92.42?
Clinical documentation must specify the nature of Acute promyelocytic leukemia, in relapse and any associated comorbidities for accurate reporting.
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