ICD-10-CM 2027
ICD-10 code for Vagotonia
From the official ICD-10-CM alphabetic index entry “Vagotonia”. Page updated September 29, 2026.
About coding Vagotonia
The ICD-10-CM code for Vagotonia is G52.2 (Disorders of vagus nerve).
Within G52 (disorders of other cranial nerves), G52.2 is specifically for disorders of vagus nerve. Related codes cover disorders of olfactory nerve (G52.0), disorders of glossopharyngeal nerve (G52.1), disorders of hypoglossal nerve (G52.3), disorders of multiple cranial nerves (G52.7), disorders of other specified cranial nerves (G52.8) and cranial nerve disorder, unspecified (G52.9).
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 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779) and DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Vagotonia ICD-10 codes
What is the ICD-10 code for Vagotonia?
- G52.2 — Disorders of vagus nerve.
Is G52.2 billable?
- Yes. G52.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G52.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G52.2 as a principal diagnosis.
Is G52.2 a CC or MCC?
- No. G52.2 is neither a CC nor an MCC under MS-DRG v44.0.