E29 vs Q98.4
E29 (Testicular dysfunction) compared with Q98.4 (Klinefelter syndrome, 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. E29 carries an Excludes1 note covering Q98.4: “Klinefelter's syndrome (Q98.0-Q98.1, Q98.4)”
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
| E29Testicular dysfunction | Q98.4Klinefelter syndrome, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Testicular dysfunction is a non-billable ICD-10-CM category code (E29). | Klinefelter syndrome, unspecified is a billable ICD-10-CM diagnosis code (Q98.4). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources