E74.818
BillableOther disorders of glucose transport
HCC Category Mapping
V24HCC 23 — Other Significant Endocrine and Metabolic Disorders
0.230ESRDHCC 23 — Other Significant Endocrine and Metabolic Disorders
0.000RxHCCHCC 43 — Other Significant Endocrine and Metabolic Disorders
0.000What This Code Means
A rare metabolic disorder affecting how the body transports glucose (sugar) across cell membranes, causing various glucose transport problems not classified elsewhere.
Coding Tips
- •Use this code only when the specific glucose transport disorder is documented but doesn't fit other E74.81x categories
- •Ensure documentation specifies the type of glucose transport defect to support medical necessity
Clinical Significance
Other disorders of glucose transport captures glucose transport defects that do not fit the GLUT1 deficiency category, such as GLUT2 deficiency (Fanconi-Bickel syndrome) or other rare glucose transporter variants. These conditions can cause hepatomegaly, renal tubular dysfunction, and growth failure. Accurate coding of these rare conditions ensures appropriate risk stratification for the specialized care required.
Documentation Requirements
- ✓Specific glucose transport disorder identified by the provider
- ✓Genetic testing or enzyme assay confirming the specific transporter deficiency
- ✓Biochemical findings relevant to the specific disorder (e.g., renal tubular markers, hepatomegaly)
- ✓Clinical manifestations documented including growth parameters and organ involvement
- ✓Current treatment plan and monitoring schedule
Commonly Confused Codes
E74.810 — Glucose transporter protein type 1 deficiency: GLUT1 has its own specific codeE74.819 — Disorders of glucose transport, unspecified: use only when no specific transport disorder is identifiedE74.00-E74.09 — Glycogen storage diseases: separate category despite overlapping clinical featuresN25.0 — Renal osteodystrophy: renal tubular dysfunction in Fanconi-Bickel is a manifestation, not the primary code