2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Pneumonia And Influenza 480-488 > Pneumonia Due To Other Specified Organism 483.* > 2008 ICD-9-CM Diagnosis 483.1 Pneumonia due to chlamydia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 483.1 can be accessed here. 483.1 is a specific code that can be used to specify a diagnosis 483.1 contains 9 index entries View the ICD-9-CM Volume 1 483.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 483.1: Pneumonia (acute) (Alpenstich) (benign) (bilateral) (brain) (cerebral) (circumscribed) (congestive) (creeping) (delayed resolution) (double) (epidemic) (fever) (flash) (fulminant) (fungoid) (granulomatous) (hemorrhagic) (incipient) (infantile) (infectious) (infiltration) (insular) (intermittent) (latent) (lobe) (migratory) (newborn) (organized) (overwhelming) (primary) (progressive) (pseudolobar) (purulent) (resolved) (secondary) (senile) (septic) (suppurative) (terminal) (true) (unresolved) (vesicular) 486 Chlamydia, chlamydial 483.1 pneumoniae 483.1 psittaci 073.0 specified type NEC 483.1 trachomatis 483.1 due to Chlamydia, chlamydial 483.1 pneumoniae 483.1 psittaci 073.0 specified type NEC 483.1 trachomatis 483.1 TWAR agent 483.1