E41 — Nutritional marasmus
Is E41 billable?
Yes — E41 is billable for FY2027. E41 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E41 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E41 at a glance
| Code | E41 |
|---|---|
| Description | Nutritional marasmus |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E41 group to?
E41 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
As a secondary diagnosis, E41 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is E41 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E41. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Athrepsia
- Marasmus
- Pedatrophia
- Atrophy, atrophic › infantile (of)
- Marasmus › due to malnutrition
- Marasmus › intestinal
- Marasmus › nutritional
- Atrophy, atrophic › nutritional › with marasmus (of)
- Deficiency, deficient › calorie, severe › with marasmus
- Wasting › extreme › with marasmus
- Malnutrition › severe › intermediate form › marasmus
- Disease, diseased › wasting NEC › due to › malnutrition › with marasmus
Excludes1 — never code together
The conditions below can never be reported together with E41 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- marasmic kwashiorkor (E42)
Inclusion terms
Alternative wording in documentation that is classified to E41.
- Severe malnutrition with marasmus
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E41 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 E40-E46
The conditions below can never be reported together with E41 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from E40-E46
The conditions below are not part of E41, but a patient may have both at the same time. When documentation supports it, E41 and the excluded code may both be reported.
How long has E41 existed?
E41 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.
Which codes are confused with E41?
ICD-10-CM declares these codes mutually exclusive with E41 — exactly one of each pair can be correct for a given encounter.