Is R19 a billable ICD-10-CM code?

No. R19 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does R19 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 R19?

R19 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

R19

R19 — Other symptoms and signs involving the digestive system and abdomen

Non-billable headerICD-10-CM

R19 is a non-billable header ICD-10-CM code for other symptoms and signs involving the digestive system and abdomen. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

acute abdomen (R10.0)

Other codes that can never be billed with R19

These codes carry an Excludes1 note pointing at R19. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R19 alone.

A09Infectious gastroenteritis and colitis, unspecified
R10.0Acute abdomen
R10.85Abdominal pain of multiple sites
R22.2Localized swelling, mass and lump, trunk
R85Abnormal findings in specimens from digestive organs and abdominal cavity
K52.9Noninfective gastroenteritis and colitis, unspecified
K59Other functional intestinal disorders
K59.1Functional diarrhea

Risk adjustment

R19 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 R19

9 child codes. Green means billable.

Questions about R19

Is R19 a billable ICD-10-CM code?: No. R19 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does R19 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 R19?: R19 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.