G56.02 — Carpal tunnel syndrome, left upper limb

G56.02

ICD-10 Chapter 6: Nervous System — illustrative image — Chapter 6: Diseases of the nervous system (G00–G99) — illustrative image

What this code means

Carpal tunnel syndrome is compression of the median nerve at the left wrist, causing hand numbness, tingling and weakness.

Also called: carpal tunnel syndrome left.

When this code is used

Used for carpal tunnel syndrome of the left upper limb.

Where it sits in ICD-10-CM

Code G56.02 belongs to Chapter 6: Diseases of the nervous system, which covers codes G00–G99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Frequently asked questions

What is ICD-10-CM code G56.02?

G56.02 is the ICD-10-CM diagnosis code for “Carpal tunnel syndrome, left upper limb”. Carpal tunnel syndrome is compression of the median nerve at the left wrist, causing hand numbness, tingling and weakness.

When is code G56.02 used?

Used for carpal tunnel syndrome of the left upper limb. It belongs to Chapter 6 of ICD-10-CM (Diseases of the nervous system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.