2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Symptoms, Signs, And Ill-Defined Conditions 780-799 > Symptoms 780-789 > General Symptoms 780.* > 2008 ICD-9-CM Diagnosis 780.51 Insomnia with sleep apnea, unspecified  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 Therefore, this code may be out of date.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 780.51 can be accessed here. 780.51 is a specific code that can be used to specify a diagnosis 780.51 contains 4 index entries View the ICD-9-CM Volume 1 780.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 780.51: Apnea, apneic (spells) 786.03 sleep 780.57 with hyposomnia, unspecified 780.51 insomnia, unspecified 780.51 Hyposomnia, unspecified (see also Insomnia) 780.52 with sleep apnea, unspecified 780.51 Insomnia, unspecified 780.52 with sleep apnea, unspecified 780.51