ICD-10 code for Neuroavitaminosis

The ICD-10-CM code for Neuroavitaminosis is E56.9 (Vitamin deficiency, unspecified).

Within E56, choose E56.9 (Vitamin deficiency, unspecified) only when documentation doesn't support a more specific option: deficiency of vitamin E (E56.0), deficiency of vitamin K (E56.1) and deficiency of other vitamins (E56.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.