G90.52 — Complex regional pain syndrome I of lower limb
Is G90.52 billable?
No — G90.52 is a non-billable header code. G90.52 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 4 billable codes beneath G90.52.
G90.52 at a glance
| Code | G90.52 |
|---|---|
| Description | Complex regional pain syndrome I of lower limb |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is G90.52 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G90.52. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Syndrome › pain › complex regional I › lower limb
Excludes1 — never code together — inherited from G90
The conditions below can never be reported together with G90.52 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)
Excludes1 — never code together — inherited from G90.5
The conditions below can never be reported together with G90.52 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G90.52, but a patient may have both at the same time. When documentation supports it, G90.52 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 G90.52? (4)
How long has G90.52 existed?
G90.52 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.