G93.3
Non-billablePostviral and related fatigue syndromes
Postviral and related fatigue syndromes
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
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
Use Additional Code
Additional codes that should follow this code
Child Codes (3)
Related Codes(9)
G93.0Cerebral cysts
G93.1Anoxic brain damage, not elsewhere classified
G93.2Benign intracranial hypertension
G93.4Other and unspecified encephalopathy
G93.5Compression of brain
G93.6Cerebral edema
G93.7Reye's syndrome
G93.8Other specified disorders of brain
G93.9Disorder of brain, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for postviral and related fatigue syndromes?
The ICD-10-CM code for postviral and related fatigue syndromes is G93.3. The full clinical description is "Postviral and related fatigue syndromes". G93.3 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code G93.3 mean?
ICD-10-CM code G93.3 represents “Postviral and related fatigue syndromes”. It is classified under Chapter 6: Diseases of the Nervous System and is a non-billable header code. Use a more specific child code for billing purposes.
Is G93.3 a billable code?
No, G93.3 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 G93.3.
What chapter is G93.3 in?
G93.3 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G93.3?
G93.3 has Excludes1 notes indicating codes that cannot be used together with it, including: chronic fatigue NOS (R53.82); neurasthenia (F48.8).
What are the subcategories under G93.3?
G93.3 has 3 child codes, including: G93.31 (Postviral fatigue syndrome), G93.32 (Myalgic encephalomyelitis/chronic fatigue syndrome), G93.39 (Other post infection and related fatigue syndromes).
Are additional codes required with G93.3?
Yes, when using G93.3, also report: code, if applicable, for post COVID-19 condition, unspecified (U09.9).
What are the UMLS CUIs for G93.3?
G93.3 is linked to 1 UMLS Concept Unique Identifier: C5675017. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G93.3 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like postviral and related fatigue syndromes 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 G93.3?
G93.3 maps to the ICD-11 code: 8E49 (Postviral fatigue syndrome).
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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.