Complete ICD-10-CM coding and documentation guide for icd-10 coding for mismatch repair testing includes clinical validation requirements, medical necessity guidelines, and coding policies.
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Essential facts and insights about ICD-10 Coding for Mismatch Repair Testing
Use ICD-10 code Z15.89 for genetic susceptibility to other disease, ensuring proper documentation in clinical notes.
Additional codes that may be used with this diagnosis
Malignant neoplasm of colon, unspecified
Use when testing is due to a confirmed neoplasm.
Genetic susceptibility to other disease
Use when genetic testing is performed.
The ICD-10 code for MMR titer testing depends on the context: use Z71.85 for immunity checks or Z20.89 for exposure.
Mismatch repair deficiency is coded using Z15.89 for genetic susceptibility, often linked with a neoplasm code like C18.9 for colorectal cancer.