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Coders will see the same code first instruction when looking at malignant ascites. In the ICD-10-CM tabular, the coder will see notes under the Category J91.0 to code first the underlying neoplasm. Altered mental status altered level of consciousness (R40.-) altered mental status due to known condition - code to condition delirium NOS (R41.0) Change in mental status NOS. In this case, the PDX/first listed code will be the lung cancer followed by the code for the malignant pleural effusion.
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ICD-10 Mental Health Diagnosis Codes ListÄownload our ICD-10 mental health diagnosis code list, skip to Commonly Used Diagnosis Codes, Z-Codes for Mental Health Providers, or look up legacy ICD-9 mental health diagnosis codes. Introduction to Billing & Coding for Cognitive Testing. ICD-10-CM Diagnosis Code R41.82 convert to ICD-9-CM Altered mental status, unspecified.