ICD-10 Code for Avitaminosis

Also indexed as (multiple)

The ICD-10-CM code for avitaminosis is E56.9 — Vitamin deficiency, unspecified. This is the code the Alphabetic Index gives for avitaminosis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

E56.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which avitaminosis code should you use?

The Alphabetic Index lists 10 codes under Avitaminosis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

B	E53.9	Vitamin B deficiency, unspecified
B2	E53.0	Riboflavin deficiency
B6	E53.1	Pyridoxine deficiency
B12	E53.8	Deficiency of other specified B group vitamins
D	E55.9	Vitamin D deficiency, unspecified
G	E53.0	Riboflavin deficiency
K	E56.1	Deficiency of vitamin K
nicotinic acid	E52	Niacin deficiency [pellagra]

Avitaminosis D

with rickets

E55.0

Rickets, active

Avitaminosis B

with › beriberi	E51.11	Dry beriberi
with › pellagra	E52	Niacin deficiency [pellagra]

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources