Is ICD-10-CM code E55 billable?

No, E55 (Vitamin D deficiency) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code E55 belong to?

E55 belongs to Chapter 4 of the ICD-10-CM tabular list: E00–E89 (Endocrine, Nutritional and Metabolic Diseases).

E55Not billable, use a more specific code below

Vitamin D deficiency

In Other nutritional deficiencies (E50-E64), chapter 4: Endocrine, Nutritional and Metabolic Diseases

2 billable codes under E55: 1 is a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.

Instructional notes

Excludes1: not coded here, use a different code

adult osteomalacia (M83.-)
osteoporosis (M80.-)
sequelae of rickets (E64.3)

Also applies, from Other nutritional deficiencies (E50-E64)

These notes sit on E50-E64 and apply to every code under it, including E55.

Excludes2: not included here, code separately if applicable

nutritional anemias (D50-D53)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers diabetes mellitus coding, including type, insulin and drug use, pump malfunction and secondary diabetes, plus obesity and obesity class codes.

Diabetes mellitus (page 39)
Obesity (page 42)

Read Section I.C.4 (page 39)

All codes under E55

E55 can't be used on a claim. Pick a billable code below; grey headings group them.

E55 MS-DRGs

As the principal diagnosis, the billable codes under E55 group to MS-DRG 553, 554, 640, or 641 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 553 Bone Diseases and Arthropathies with MCC (1 of 2 codes)
DRG 554 Bone Diseases and Arthropathies without MCC (1 of 2 codes)
DRG 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC (1 of 2 codes)
DRG 641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC (1 of 2 codes)

Other codes that refer to E55

Notes on these codes point to E55.

E83 Excludes1: vitamin D deficiency (E55.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Vitamin D Deficiency

Vitamin D deficiency means that your body is not getting enough vitamin D to stay healthy. Vitamin D helps your body absorb calcium. Calcium is one of the main building blocks of bone. Vitamin D also has a role in your nervous, muscle, and immune systems.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.