2027 ICD-10-CM Diagnosis Code G52Disorders of other cranial nerves

ICD-10-CM Codes›G00–G99›G50-G59›G52

ICD-10-CM G52
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G52 is a non-billable ICD-10-CM category code for disorders of other cranial nerves, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G52.0, G52.1, G52.2, and G52.3.

Code Identity

ICD-10-CM Code
G52
Billable Status
No — Non-Billable Category
Code Describes
Disorders of other cranial nerves
Short Description
Disorders of other cranial nerves
Same as the full description in the CMS dataset.
Chapter
G50-G59
Nerve, nerve root and plexus disorders

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG50-G59Nerve, nerve root and plexus disorders
CategoryG52Disorders of other cranial nerves
This CodeG52Disorders of other cranial nerves

Specific Coding for Disorders of other cranial nervesOverview

Non-specific codes like G52 require more characters. Use one of these billable codes instead:

  • Use G52.0 for Disorders of olfactory nerve

  • Use G52.1 for Disorders of glossopharyngeal nerve

  • Use G52.2 for Disorders of vagus nerve

  • Use G52.3 for Disorders of hypoglossal nerve

  • Use G52.7 for Disorders of multiple cranial nerves

  • Use G52.8 for Disorders of other specified cranial nerves

  • Use G52.9 for Cranial nerve disorder, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G52: its own notes plus those printed at block G50-G59 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block G50-G59 Nerve, nerve root and plexus disorders applies to 106 codes
  • current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
  • neuralgia NOS (M79.2)
  • neuritis NOS (M79.2)
  • peripheral neuritis in pregnancy (O26.82-)
  • radiculitis NOS (M54.1-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On G52 itself
  • disorders of acoustic [8th] nerve (H93.3)
  • disorders of optic [2nd] nerve (H46, H47.0)
  • paralytic strabismus due to nerve palsy (H49.0-H49.2)
From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Peripheral Nerve Disorders

Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off from your brain and spinal cord and connect to all parts of your body, including your muscles and organs.

The full article covers:

  • What are peripheral nerves?
  • What are peripheral nerve disorders?
  • What causes peripheral nerve disorders?
  • What are the symptoms of peripheral nerve disorders?
  • How are peripheral nerve disorders diagnosed?
  • What are the treatments for peripheral nerve disorders?
  • Can peripheral nerve disorders be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G52Overview

What is the ICD-10 code for disorders of other cranial nerves?

G52 is the ICD-10-CM category for disorders of other cranial nerves, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is G52 (Disorders of other cranial nerves) a billable code?

No. This is a category header that groups the codes for disorders of other cranial nerves, and headers cannot be submitted on claims. Claims for disorders of other cranial nerves need a more specific code from this category, such as G52.0, G52.1, and G52.2.

Can G52 be reported with M79.2?

Not as a rule. The Excludes1 note at block G50-G59, which applies to G52, lists "neuralgia NOS (M79.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).