G99
Non-billableOth disorders of nervous system in diseases classd elswhr
Other disorders of nervous system in diseases classified elsewhere
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- 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)
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code G99?
ICD-10-CM code G99 represents "Other disorders of nervous system in diseases classified elsewhere". It is a non-billable header code — use a more specific child code for billing purposes.
Is G99 a billable code?
No, G99 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under G99.
What chapter is G99 in?
G99 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What are the subcategories under G99?
G99 has 3 child codes, including: G99.0 (Autonomic neuropathy in diseases classified elsewhere), G99.2 (Myelopathy in diseases classified elsewhere), G99.8 (Oth disrd of nervous system in diseases classified elsewhere).
What are the UMLS CUIs for G99?
G99 is linked to 1 UMLS Concept Unique Identifier: C0694480. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.