R20.0 — Anesthesia of skin
R20.0 is a billable, specific ICD-10-CM code for anesthesia of skin. It is valid for submission on a claim.
Risk adjustment
R20.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
R20.0 is named in 29 Medicare coverage policies — 26 listing it as supporting medical necessity, and 3 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56034Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathynot covered
- A57589Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered
- A57663Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered
- A53057Billing and Coding: Home Health Occupational Therapy
How R20.0 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 R20.0.
- Anesthesia, anesthetic
- Hemianalgesia
- Hemianesthesia
- Numbness
- Anesthesia, anesthetic›local skin lesion
- Anesthesia, anesthetic›skin
- Disturbance›sensation NEC›skin›anesthesia
Related codes at this level
Codes that share R20. If R20.0 is not quite right, the correct code is usually one of these.
Questions about R20.0
- Is R20.0 a billable ICD-10-CM code?
- Yes. R20.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R20.0 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 the skin and subcutaneous tissue (R20-R23).