G90.81
BillableSerotonin syndrome
Serotonin syndrome
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Serotonin toxicity
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
- poisoning due to drug or toxin, such as:
- •linezolidX- with sixth character 1-4)T36.8
- •monoamine oxidase inhibitorsX with sixth character 1-4)T43.1
- •selective serotonin and norepinephrine reuptake inhibitors [SSNRI] with sixth character 1-4)T43.21
- •selective serotonin reuptake inhibitors [SSRI] with sixth character 1-4)T43.22
Use Additional Code
Additional codes that should follow this code
- code for adverse effect, if applicable, to identify drug, such as:
- •linezolidX5)T36.8
- •monoamine oxidase inhibitorsX5)T43.1
- •selective serotonin and norepinephrine reuptake inhibitors [SSNRI]T43.215
- •selective serotonin reuptake inhibitors [SSRI]T43.225
Related Codes(1)
Also Known As / Clinical Terms(21)
UMLS
- Serotonergic syndromeC0699828
- Serotonin SyndromeC0699828
- Serotonin SyndromesC0699828
- Serotonin syndromeC0699828
- Serotonin syndrome (disorder)C0699828
- Serotonin toxicityC0699828
- Syndrome, SerotoninC0699828
- Syndromes, SerotoninC0699828
- serotonergic syndromeC0699828
- serotonin syndromeC0699828
- serotonin syndromesC0699828
- syndrome serotoninC0699828
Clinical Terms
- serotonergic syndrome
- Syndrome, Serotonin
- serotonin syndromes
- Serotonin syndrome (disorder)
- Serotonin toxicity
- syndrome serotonin
- Syndromes, Serotonin
Frequently Asked Questions
What is the ICD-10 code for serotonin syndrome?
The ICD-10-CM code for serotonin syndrome is G90.81. The full clinical description is "Serotonin syndrome". G90.81 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G90.81 mean?
ICD-10-CM code G90.81 represents “Serotonin syndrome”. 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 G90.81 a billable code?
Yes, G90.81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G90.81 in?
G90.81 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G90.81?
G90.81 has Excludes1 notes indicating codes that cannot be used together with it, including: dysfunction of the autonomic nervous system due to alcohol (G31.2).
Are additional codes required with G90.81?
Yes, when using G90.81, also report: adverse effect, if applicable, to identify drug, such as:; linezolid (T36.8X5); monoamine oxidase inhibitors (T43.1X5); selective serotonin and norepinephrine reuptake inhibitors [SSNRI] (T43.215); selective serotonin reuptake inhibitors [SSRI] (T43.225).
What SNOMED CT codes does G90.81 map to?
G90.81 maps to 1 SNOMED CT concept: 371089000. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G90.81?
G90.81 is linked to 1 UMLS Concept Unique Identifier: C0699828. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G90.81 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like serotonin syndrome 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 G90.81?
There is no direct ICD-11 mapping available for G90.81 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.