R10.A — Pain localized to flank
R10.A is a non-billable header ICD-10-CM code for pain localized to flank. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Lateral abdomen pain
- Lateral flank pain
- Latus region pain
Excludes1 inherited from the categories above R10.A
These are not written on R10.A, but they bind it: a note on a category applies to every code beneath it. Billing R10.A with anything listed here is a denial.
Excludes2 inherited from the categories above R10.A
Also inherited, and the opposite of Excludes1: these conditions are not part of R10.A, but a patient can have both, so you may code both.
Other codes that can never be billed with R10.A
These codes carry an Excludes1 note pointing at R10.A. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R10.A alone.
- R52Pain, unspecified
Risk adjustment
R10.A 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.
The condition this code belongs to
Every code for the condition on one page, which one applies when, and the mistake coders make with it.
Code history
R10.A has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead R10.A
4 child codes. Green means billable.
Related codes at this level
Codes that share R10. If R10.A is not quite right, the correct code is usually one of these.
Questions about R10.A
- Is R10.A a billable ICD-10-CM code?
- No. R10.A is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does R10.A 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 digestive system and abdomen (R10-R19).
- What cannot be coded together with R10.A?
- R10.A carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R10.A (R10) and apply to it just the same.