Complete ICD-10-CM coding and documentation guide for icd-10 coding for subtherapeutic international normalized ratio includes clinical validation requirements, medical necessity guidelines, and coding policies.
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Essential facts and insights about ICD-10 Coding for Subtherapeutic International Normalized Ratio
Use ICD-10 code R79.8 for other specified abnormal findings of blood chemistry, ensuring proper documentation in clinical notes.
Additional codes that may be used with this diagnosis
Personal history of long-term (current) use of anticoagulants
Use as an additional code to indicate long-term anticoagulant use with INR monitoring.
The ICD-10 code for subtherapeutic INR as the primary reason for admission is R79.8. Use Z92.1 as an additional code to indicate long-term anticoagulant use.
D68.8 should be used when subtherapeutic INR is due to a coagulation defect or underwarfarinization with clinical consequences.