G93.39 vs R53.82
G93.39 (Other post infection and related fatigue syndromes) compared with R53.82 (Chronic fatigue, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G93.39 carries an Excludes1 note covering R53.82: “chronic fatigue NOS (R53.82)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. R53.82 carries an Excludes1 note covering G93.39: “other post infection and related fatigue syndromes (G93.39)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G93.39Other post infection and related fatigue syndromes | R53.82Chronic fatigue, unspecified | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Other post infection and related fatigue syndromes is a billable ICD-10-CM diagnosis code (G93.39). | Chronic fatigue, unspecified is a billable ICD-10-CM diagnosis code (R53.82). |
| Use additional code | code, if applicable, for post COVID-19 condition, unspecified (U09.9) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources