Choosing ICD-10-CM Codes

Step 1: Look up the term for the diagnosis in the Alphabetic Index.

Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) J18.9

Next, verify this code in the Tabular List.

Step 2: Verify the code J18.9 in the Tabular List.

J18

Pneumonia, unspecified organism
Code first associated influenza, if applicable (J09.X1, J10.0-, J11.0-)

J18.9 Pneumonia, unspecified organism

The Tabular List shows J18.9 as the code for pneumonia, unspecified organism.

Code Assignment for this Diagnosis: J18.9