Is K50.1 a billable ICD-10-CM code?

No. K50.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does K50.1 sit in the tabular list?

Diseases of the digestive system (K00-K95), in the block Noninfective enteritis and colitis (K50-K52).

What cannot be coded together with K50.1?

K50.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

K50.1

K50.1 — Crohn's disease of large intestine

Non-billable headerICD-10-CM

K50.1 is a non-billable header ICD-10-CM code for crohn's disease of large intestine. 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.

Crohn's disease of both small and large intestine (K50.8)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Crohn's disease [regional enteritis] of colon
Crohn's disease [regional enteritis] of large bowel
Crohn's disease [regional enteritis] of rectum
Granulomatous colitis
Regional colitis

Other codes that can never be billed with K50.1

These codes carry an Excludes1 note pointing at K50.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K50.1 alone.

K63.0Abscess of intestine
K63.2Fistula of intestine

Risk adjustment

K50.1 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 K50.1

2 child codes. Green means billable.

Related codes at this level

Codes that share K50. If K50.1 is not quite right, the correct code is usually one of these.

Questions about K50.1

Is K50.1 a billable ICD-10-CM code?: No. K50.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does K50.1 sit in the tabular list?: Diseases of the digestive system (K00-K95), in the block Noninfective enteritis and colitis (K50-K52).
What cannot be coded together with K50.1?: K50.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.