2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Pain 338-338 > 2008 ICD-9-CM Diagnosis 338 Pain, not elsewhere classified  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 Therefore, this code may be out of date.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 338 can be accessed here. 338 is a non-specific code that cannot be used to specify a diagnosis ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Use additional code to identify: pain associated with psychological factors (307.89) 338 excludes: generalized pain (780.96) localized pain, unspecified type - code to pain by site pain disorder exclusively attributed to psychological factors (307.80)