G90.8 — Other disorders of autonomic nervous system

Not billable

Is G90.8 billable?

No — G90.8 is a non-billable header code. G90.8 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath G90.8.

Billable codes under this header

G90.8 at a glance

Code	G90.8
Description	Other disorders of autonomic nervous system
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together — inherited from G90

The conditions below can never be reported together with G90.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

dysfunction of the autonomic nervous system due to alcohol (G31.2)

Excludes2 — not included here — inherited from Chapter 6

The conditions below are not part of G90.8, but a patient may have both at the same time. When documentation supports it, G90.8 and the excluded code may both be reported.

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)

What codes fall under G90.8? (2)

How long has G90.8 existed?

G90.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

FY2025: G90.8 stopped being billable

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.