Is R65 a billable ICD-10-CM code?

No. R65 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does R65 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block General symptoms and signs (R50-R69).

R65

R65 — Symptoms and signs specifically associated with systemic inflammation and infection

Non-billable headerICD-10-CM

R65 is a non-billable header ICD-10-CM code for symptoms and signs specifically associated with systemic inflammation and infection. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with R65

These codes carry an Excludes1 note pointing at R65. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R65 alone.

R65.1Systemic inflammatory response syndrome (SIRS) of non-infectious origin
T79.4Traumatic shock
T79.4XXATraumatic shock, initial encounter
T79.4XXDTraumatic shock, subsequent encounter
T79.4XXSTraumatic shock, sequela

Risk adjustment

R65 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.

Code to one of these instead R65

2 child codes. Green means billable.

Questions about R65

Is R65 a billable ICD-10-CM code?: No. R65 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does R65 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block General symptoms and signs (R50-R69).