G99.8
BillableOth disrd of nervous system in diseases classified elsewhere
Other specified disorders of nervous system in diseases classified elsewhere
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- nervous system involvement in:
- •cysticercosisB69.0
- •rubellaB06.0
- •syphilisA52.1
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Code First
The underlying condition must be sequenced before this code
- underlying disorder, such as:
- •amyloidosisE85
- •avitaminosisE56
Related Codes(2)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(10)
SNOMED CT
UMLS
Clinical Terms
- Peripheral neuropathy due to metabolic disorder
- Neuroschistosomiasis
- Neurologic disorder due to degeneration of lumbar intervertebral disc
- Infection of nervous system caused by Schistosoma
Frequently Asked Questions
What is the ICD-10 code for oth disrd of nervous system in diseases classified elsewhere?
The ICD-10-CM code for oth disrd of nervous system in diseases classified elsewhere is G99.8. The full clinical description is "Other specified disorders of nervous system in diseases classified elsewhere". G99.8 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G99.8 mean?
ICD-10-CM code G99.8 represents “Other specified disorders of nervous system in diseases classified elsewhere”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G99.8 a billable code?
Yes, G99.8 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G99.8 in?
G99.8 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G99.8?
G99.8 has Excludes1 notes indicating codes that cannot be used together with it, including: nervous system involvement in:; cysticercosis (B69.0); rubella (B06.0-); and 1 more.
What SNOMED CT codes does G99.8 map to?
G99.8 maps to 3 SNOMED CT concepts: 1177012000, 16931000119102, 710360007. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G99.8?
G99.8 is linked to 1 UMLS Concept Unique Identifier: C0477431. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G99.8 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like oth disrd of nervous system in diseases classified elsewhere affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G99.8?
G99.8 maps to the ICD-11 code: 8E7Z (Diseases of the nervous system, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.