Non-Billable / Non-Specific Code
ICD-10-CM G56 is the diagnosis code for Mononeuropathies of upper limb. This code falls under the section "Nerve, nerve root and plexus disorders" 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.
The following conditions should never be coded at the same time as G56. They are mutually exclusive:
Understanding where G56 sits in the ICD-10-CM classification helps ensure proper coding:
No, G56 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
G56 is the ICD-10-CM diagnosis code for "Mononeuropathies of upper limb". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
G56 is located in Section G50-G59 — "Nerve, nerve root and plexus disorders" within Chapter 6 of the ICD-10-CM Tabular List.
G56 has 7 sub-code(s) that provide more specific detail: G56.0, G56.1, G56.2, G56.3, G56.4 and more.
Use G56 when the patients documented diagnosis matches "Mononeuropathies of upper limb" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Mononeuropathies of upper limb is G56.
No, G56 is non-billable. Use a more specific sub-code for primary diagnosis billing.
G56 is in Chapter 6 of the ICD-10-CM Tabular List.
Type 1 Excludes for G56 include: current traumatic nerve disorder - see nerve injury by body region.
Yes, G56 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.