R40.3 — Persistent vegetative state
R40.3 is a billable, specific ICD-10-CM code for persistent vegetative state. It is valid for submission on a claim.
Risk adjustment
R40.3 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 202 Coma, Brain Compression/Anoxic Damage0.543 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
R40.3 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A56625Billing and Coding: Echocardiography
- A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How R40.3 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R40.3.
- Coma›persistent vegetative state
- State›persistent vegetative
- State›vegetative, persistent
Related codes at this level
Codes that share R40. If R40.3 is not quite right, the correct code is usually one of these.
Questions about R40.3
- Is R40.3 a billable ICD-10-CM code?
- Yes. R40.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R40.3 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).