R27.9 — Unspecified lack of coordination
R27.9 is a billable, specific ICD-10-CM code for unspecified lack of coordination. It is valid for submission on a claim.
Risk adjustment
R27.9 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
R27.9 is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
How R27.9 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 R27.9.
- Lack of›coordination
Related codes at this level
Codes that share R27. If R27.9 is not quite right, the correct code is usually one of these.
Questions about R27.9
- Is R27.9 a billable ICD-10-CM code?
- Yes. R27.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R27.9 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 nervous and musculoskeletal systems (R25-R29).