G93.3 — Postviral and related fatigue syndromes
Is G93.3 billable?
No — G93.3 is a non-billable header code. G93.3 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath G93.3.
G93.3 at a glance
| Code | G93.3 |
|---|---|
| Description | Postviral and related fatigue syndromes |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with G93.3 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code
Report an additional code alongside G93.3 to fully describe the condition. G93.3 is sequenced first.
- code, if applicable, for post COVID-19 condition, unspecified (U09.9)
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G93.3, but a patient may have both at the same time. When documentation supports it, G93.3 and the excluded code may both be reported.
- 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)
What codes fall under G93.3? (3)
How long has G93.3 existed?
G93.3 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2023: G93.3 stopped being billable
- FY2023Postviral fatigue syndromePostviral and related fatigue syndromes
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G93.3?
ICD-10-CM declares these codes mutually exclusive with G93.3 — exactly one of each pair can be correct for a given encounter.
What other codes are in the G93 family? (9)
- G93.0Cerebral cysts
- G93.1Anoxic brain damage, not elsewhere classified
- G93.2Benign intracranial hypertension
- G93.4Other and unspecified encephalopathynot billable
- G93.5Compression of brain
- G93.6Cerebral edema
- G93.7Reye's syndrome
- G93.8Other specified disorders of brainnot billable
- G93.9Disorder of brain, unspecified