E88.4 vs Q95
E88.4 (Mitochondrial metabolism disorders) compared with Q95 (Balanced rearrangements and structural markers, not elsewhere classified), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. Q95 carries an Excludes2 note covering E88.4: “mitochondrial metabolic disorders (E88.4-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| E88.4Mitochondrial metabolism disorders | Q95Balanced rearrangements and structural markers, not elsewhere classified | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Mitochondrial metabolism disorders is a non-billable ICD-10-CM category code (E88.4). | Balanced rearrangements and structural markers, not elsewhere classified is a non-billable ICD-10-CM category code (Q95). |
| Includes | — | Robertsonian and balanced reciprocal translocations and insertions |
| Use additional code | codes for associated conditions | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources