E70-E88 — Metabolic disorders
ICD-10-CM codes E70-E88 cover metabolic disorders, within endocrine, nutritional and metabolic diseases. The block holds 366 codes across 17 categories, of which 286 are billable and 80 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- Ehlers-Danlos syndromes (Q79.6-)
Risk adjustment in E70-E88
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 50 Amyloidosis, Porphyria, and Other Specified Metabolic Disorders
- HCC 49 Specified Lysosomal Storage Disorders
- HCC 277 Cystic Fibrosis
What else to watch in E70-E88
- 202 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in E70-E88
- E70Disorders of aromatic amino-acid metabolism
- E71Disorders of branched-chain amino-acid metabolism and fatty-acid metabolism
- E72Other disorders of amino-acid metabolism
- E73Lactose intolerance
- E74Other disorders of carbohydrate metabolism
- E75Disorders of sphingolipid metabolism and other lipid storage disorders
- E76Disorders of glycosaminoglycan metabolism
- E77Disorders of glycoprotein metabolism
- E78Disorders of lipoprotein metabolism and other lipidemias
- E79Disorders of purine and pyrimidine metabolism
- E80Disorders of porphyrin and bilirubin metabolism
- E83Disorders of mineral metabolism
- E84Cystic fibrosis
- E85Amyloidosis
- E86Volume depletion
- E87Other disorders of fluid, electrolyte and acid-base balance
- E88Other and unspecified metabolic disorders