Disorders of autonomic nervous system
Non-billable header
G90 is a non-billable header code. Use one of the more specific codes below.
Excludes1
Not coded here — never report together with this code.
- dysfunction of the autonomic nervous system due to alcohol (G31.2)
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
More specific codes G90
- G90.0Idiopathic peripheral autonomic neuropathyHeader
- G90.1Familial dysautonomia [Riley-Day]Billable
- G90.2Horner's syndromeBillable
- G90.3Multi-system degeneration of the autonomic nervous systemBillable
- G90.4Autonomic dysreflexiaBillable
- G90.5Complex regional pain syndrome I (CRPS I)Header
- G90.8Other disorders of autonomic nervous systemHeader
- G90.9Disorder of the autonomic nervous system, unspecifiedBillable
- G90.APostural orthostatic tachycardia syndrome [POTS]Billable
- G90.BLMNB1-related autosomal dominant leukodystrophyBillable
Related codes
- G89Pain, not elsewhere classifiedHeader
- G91HydrocephalusHeader
- G92Toxic encephalopathyHeader
- G93Other disorders of brainHeader
- G94Other disorders of brain in diseases classified elsewhereBillable
- G95Other and unspecified diseases of spinal cordHeader
- G96Other disorders of central nervous systemHeader
- G97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classifiedHeader
- G98Other disorders of nervous system not elsewhere classifiedHeader
- G99Other disorders of nervous system in diseases classified elsewhereHeader