E64.9 — Sequelae of unspecified nutritional deficiency
Is E64.9 billable?
Yes, but E64.9 is an unspecified code. E64.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, E64.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting E64.9 — the more specific alternatives are listed below.
E64.9 at a glance
| Code | E64.9 |
|---|---|
| Description | Sequelae of unspecified nutritional deficiency |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E64.9 group to?
E64.9 sits in MDC 10 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 640Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCCmedical
- 641Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCCmedical
How is E64.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E64.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Sequelae › nutritional deficiency (of)
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E64.9 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)
Code first — inherited from E64
The underlying condition below must be sequenced before E64.9. E64.9 describes a manifestation and cannot be the principal or first-listed diagnosis.
- condition resulting from (sequela) of malnutrition and other nutritional deficiencies
Excludes2 — not included here — inherited from E50-E64
The conditions below are not part of E64.9, but a patient may have both at the same time. When documentation supports it, E64.9 and the excluded code may both be reported.
- nutritional anemias (D50-D53)
How long has E64.9 existed?
E64.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.