G90.5
Non-Billable

Complex regional pain syndrome I (CRPS I)

Non-Billable / Non-Specific Code

What is Complex regional pain syndrome I (CRPS I)?

ICD-10-CM G90.5 is the diagnosis code for Complex regional pain syndrome I (CRPS I). This code falls under the section "Other disorders of the nervous system" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for G90.5

✅ This Code Includes

  • Reflex sympathetic dystrophy

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as G90.5. They are mutually exclusive:

  • causalgia of lower limb (G57.7-)
  • causalgia of upper limb (G56.4-)
  • complex regional pain syndrome II of lower limb (G57.7-)
  • complex regional pain syndrome II of upper limb (G56.4-)

ICD-10-CM Code Hierarchy

Understanding where G90.5 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 4 entries
G90.50Complex regional pain syndrome I, unspecifiedBillableG90.51Complex regional pain syndrome I of upper limbNon-BillableG90.511Complex regional pain syndrome I of right upper limbBillableG90.512Complex regional pain syndrome I of left upper limbBillableG90.513Complex regional pain syndrome I of upper limb, bilateralBillableG90.519Complex regional pain syndrome I of unspecified upper limbBillableG90.52Complex regional pain syndrome I of lower limbNon-BillableG90.521Complex regional pain syndrome I of right lower limbBillableG90.522Complex regional pain syndrome I of left lower limbBillableG90.523Complex regional pain syndrome I of lower limb, bilateralBillableG90.529Complex regional pain syndrome I of unspecified lower limbBillableG90.59Complex regional pain syndrome I of other specified siteBillable
Related Codes

Frequently Asked Questions

Is G90.5 a billable ICD-10-CM code?

No, G90.5 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does G90.5 mean?

G90.5 is the ICD-10-CM diagnosis code for "Complex regional pain syndrome I (CRPS I)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of G90.5?

The parent code of G90.5 is G90 ("Disorders of autonomic nervous system"). G90.5 provides a more specific classification within this category.

What section is G90.5 in?

G90.5 is located in Section G89-G99 — "Other disorders of the nervous system" within Chapter 6 of the ICD-10-CM Tabular List.

What are the sub-codes of G90.5?

G90.5 has 4 sub-code(s) that provide more specific detail: G90.50, G90.51, G90.52, G90.59.

When should I use G90.5?

Use G90.5 when the patients documented diagnosis matches "Complex regional pain syndrome I (CRPS I)" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Complex regional pain syndrome I (CRPS I)?

The ICD-10-CM code for Complex regional pain syndrome I (CRPS I) is G90.5.

Can G90.5 be used for primary diagnosis?

No, G90.5 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is G90.5 in?

G90.5 is in Chapter 6 of the ICD-10-CM Tabular List.

What conditions are excluded from G90.5?

Type 1 Excludes for G90.5 include: causalgia of lower limb (G57.7-); causalgia of upper limb (G56.4-); complex regional pain syndrome II of lower limb (G57.7-) and more.

Is G90.5 valid for 2026?

Yes, G90.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousG90.4Autonomic dysreflexiaNext →G90.50Complex regional pain syndrome I, unspecified
Code Details
G90.5
Complex regional pain syndrome I (CRPS I)
Non-Billable / Non-Specific Code
6 — Diseases of the nervous system (G00-G99)
G89-G99 — Other disorders of the nervous system
2026 ICD-10-CM