E88.818 — Other insulin resistance
E88.818 is a billable, specific ICD-10-CM code for other insulin resistance. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Insulin resistance syndrome, Type B
Risk adjustment
E88.818 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E88.818 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A57326Billing and Coding: Electrocardiograms
How E88.818 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E88.818.
- Resistance, resistant›insulin›specified type NEC
- Syndrome›insulin resistance›type B
Related codes at this level
Codes that share E88.81. If E88.818 is not quite right, the correct code is usually one of these.
Questions about E88.818
- Is E88.818 a billable ICD-10-CM code?
- Yes. E88.818 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E88.818 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).