E88.818 — Other insulin resistance
Is E88.818 billable?
Yes — E88.818 is billable for FY2027. E88.818 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E88.818 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E88.818 at a glance
| Code | E88.818 |
|---|---|
| Description | Other insulin resistance |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E88.818 group to?
E88.818 sits in MDC 10 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 642Inborn and Other Disorders of Metabolismmedical
How is E88.818 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E88.818. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Resistance, resistant › insulin › specified type NEC (to)
- Syndrome › insulin resistance › type B
Inclusion terms
Alternative wording in documentation that is classified to E88.818.
- Insulin resistance syndrome, Type B
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E88.818 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Excludes1 — never code together — inherited from E70-E88
The conditions below can never be reported together with E88.818 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from E88
The conditions below can never be reported together with E88.818 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- histiocytosis X (chronic) (C96.6)
Use additional code — inherited from E88
Report an additional code alongside E88.818 to fully describe the condition. E88.818 is sequenced first.
- codes for associated conditions
Use additional code — inherited from E88.81
Report an additional code alongside E88.818 to fully describe the condition. E88.818 is sequenced first.
- codes for associated manifestations, such as:
- obesity (E66.-)
Excludes2 — not included here — inherited from E70-E88
The conditions below are not part of E88.818, but a patient may have both at the same time. When documentation supports it, E88.818 and the excluded code may both be reported.
- Ehlers-Danlos syndromes (Q79.6-)
How long has E88.818 existed?
E88.818 first appears in FY2024.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.