ICD-10-CM 2027
ICD-10 code for K avitaminosis
From the official ICD-10-CM alphabetic index entry “Avitaminosis (multiple) › K”. Page updated September 29, 2026.
About coding K avitaminosis
The ICD-10-CM code for K avitaminosis is E56.1 (Deficiency of vitamin K).
Within E56 (other vitamin deficiencies), E56.1 is specifically for deficiency of vitamin K. Related codes cover deficiency of vitamin E (E56.0), deficiency of other vitamins (E56.8) and vitamin deficiency, unspecified (E56.9).
Don't report E56.1 together with the conditions in its Excludes1 note: deficiency of coagulation factor due to vitamin K deficiency (D68.4) and vitamin K deficiency of newborn (P53).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for E56.1)
Common questions about K avitaminosis ICD-10 codes
What is the ICD-10 code for K avitaminosis?
- E56.1 — Deficiency of vitamin K.
Is E56.1 billable?
- Yes. E56.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E56.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E56.1 as a principal diagnosis.
Is E56.1 a CC or MCC?
- No. E56.1 is neither a CC nor an MCC under MS-DRG v44.0.