2021 ICD-10-CM Code S04.8

Injury of other cranial nerves

Version 2021

Not Valid for Submission

S04.8 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of injury of other cranial nerves. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:S04.8
Short Description:Injury of other cranial nerves
Long Description:Injury of other cranial nerves

Code Classification

Coding Guidelines

The appropriate 7th character is to be added to each code from block Injury of cranial nerve (S04). Use the following options for the aplicable episode of care:

Specific Coding for Injury of other cranial nerves

Non-specific codes like S04.8 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for injury of other cranial nerves:

  • NON-BILLABLE CODE - S04.81 for Injury of olfactory [1st ] nerve
  • NON-BILLABLE CODE - S04.811 for Injury of olfactory [1st ] nerve, right side
  • BILLABLE CODE - Use S04.811A for initial encounter
  • BILLABLE CODE - Use S04.811D for subsequent encounter
  • BILLABLE CODE - Use S04.811S for sequela
  • NON-BILLABLE CODE - S04.812 for Injury of olfactory [1st ] nerve, left side
  • BILLABLE CODE - Use S04.812A for initial encounter
  • BILLABLE CODE - Use S04.812D for subsequent encounter
  • BILLABLE CODE - Use S04.812S for sequela
  • NON-BILLABLE CODE - S04.819 for Injury of olfactory [1st ] nerve, unspecified side
  • BILLABLE CODE - Use S04.819A for initial encounter
  • BILLABLE CODE - Use S04.819D for subsequent encounter
  • BILLABLE CODE - Use S04.819S for sequela
  • NON-BILLABLE CODE - S04.89 for Injury of other cranial nerves
  • NON-BILLABLE CODE - S04.891 for Injury of other cranial nerves, right side
  • BILLABLE CODE - Use S04.891A for initial encounter
  • BILLABLE CODE - Use S04.891D for subsequent encounter
  • BILLABLE CODE - Use S04.891S for sequela
  • NON-BILLABLE CODE - S04.892 for Injury of other cranial nerves, left side
  • BILLABLE CODE - Use S04.892A for initial encounter
  • BILLABLE CODE - Use S04.892D for subsequent encounter
  • BILLABLE CODE - Use S04.892S for sequela
  • NON-BILLABLE CODE - S04.899 for Injury of other cranial nerves, unspecified side
  • BILLABLE CODE - Use S04.899A for initial encounter
  • BILLABLE CODE - Use S04.899D for subsequent encounter
  • BILLABLE CODE - Use S04.899S for sequela

Information for Patients


Peripheral Nerve Disorders

Also called: Neuritis, Peripheral neuritis, Peripheral neuropathy

Your peripheral nerves are the ones outside your brain and spinal cord. Like static on a telephone line, peripheral nerve disorders distort or interrupt the messages between the brain and the rest of the body.

There are more than 100 kinds of peripheral nerve disorders. They can affect one nerve or many nerves. Some are the result of other diseases, like diabetic nerve problems. Others, like Guillain-Barre syndrome, happen after a virus infection. Still others are from nerve compression, like carpal tunnel syndrome or thoracic outlet syndrome. In some cases, like complex regional pain syndrome and brachial plexus injuries, the problem begins after an injury. Some people are born with peripheral nerve disorders.

Symptoms often start gradually, and then get worse. They include

Treatment aims to treat any underlying problem, reduce pain and control symptoms.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)