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ICD-10-CM - Coggle Diagram

- - - - principal procedure sequenced first
  - - - FIRST Underlying condition (significant as a cause or basis of something but not necessarily manifest or obvious)
        
        NEXT Manifestation (a symptom or sign of an ailment)
        
        Note: "in diseases classified elsewhere" These codes are never permitted to be used as first listed or principal diagnosis codes.
        They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
        
        Note: A "Code Also" note instructs that two codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
        
        "Use Additional Code" present?
        
        Yes
        
        1 more item...
        
        NO
        
        Signs and symptoms?
        
        Yes
        
        Associated with disease process?
        
        Yes
        
        do not code additional
        
        No
        
        Add add'l code
        
        Acute and Chronic?
        
        Yes
        
        code both, sequence ACUTE first
        
        No
        
        Two Diagnoses?
        
        Yes
        
        Use "Combination Code"
        
        No
      - report first code for diagnosis, condition, problem, or other reason for encounter.
        
        second, report add'l that describe any coexisting conditions that were treated or medically managed that influenced tx (comorbidities)
        
        note: in some cases, the first listed diagnosis may be a sign or symptom when a diagnosis has not been established by the provider