G90.5 — Complex regional pain syndrome I (CRPS I)
G90.5 is a non-billable header ICD-10-CM code for complex regional pain syndrome i (crps i). It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Reflex sympathetic dystrophy
Other codes that can never be billed with G90.5
These codes carry an Excludes1 note pointing at G90.5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G90.5 alone.
Risk adjustment
G90.5 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead G90.5
4 child codes. Green means billable.
Related codes at this level
Codes that share G90. If G90.5 is not quite right, the correct code is usually one of these.
- G90.0Idiopathic peripheral autonomic neuropathy
- G90.1Familial dysautonomia [Riley-Day]
- G90.2Horner's syndrome
- G90.3Multi-system degeneration of the autonomic nervous system
- G90.4Autonomic dysreflexia
- G90.8Other disorders of autonomic nervous system
- G90.9Disorder of the autonomic nervous system, unspecified
- G90.APostural orthostatic tachycardia syndrome [POTS]
- G90.BLMNB1-related autosomal dominant leukodystrophy
Questions about G90.5
- Is G90.5 a billable ICD-10-CM code?
- No. G90.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G90.5 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).
- What cannot be coded together with G90.5?
- G90.5 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.