Is K91.2 a billable ICD-10-CM code?

Yes. K91.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does K91.2 sit in the tabular list?

Diseases of the digestive system (K00-K95), in the block Other diseases of the digestive system (K90-K95).

What cannot be coded together with K91.2?

K91.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

K91.2

K91.2 — Postsurgical malabsorption, not elsewhere classified

Billable / specific codeICD-10-CM

K91.2 is a billable, specific ICD-10-CM code for postsurgical malabsorption, not elsewhere classified. It is valid for submission on a claim.

Excludes1 — never code together

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

malabsorption osteomalacia in adults (M83.2)
malabsorption osteoporosis, postsurgical (M80.8-, M81.8)

Inclusion terms

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

Postsurgical blind loop syndrome

Other codes that can never be billed with K91.2

These codes carry an Excludes1 note pointing at K91.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K91.2 alone.

K90Intestinal malabsorption
K90.2Blind loop syndrome, not elsewhere classified
K90.82Short bowel syndrome

Risk adjustment

K91.2 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

K91.2 is named in 15 Medicare coverage policies — 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56416Billing and Coding: Assays for Vitamins and Metabolic Function
A56416Billing and Coding: Assays for Vitamins and Metabolic Function
A56798Billing and Coding: Vitamin D Assay Testing
A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed

How K91.2 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 K91.2.

Tachyalimentation
Malabsorption›postgastrectomy
Malabsorption›postsurgical
Malnutrition›following gastrointestinal surgery
Complication›surgical procedure›malabsorption NEC(postsurgical)
Malabsorption›syndrome›postsurgical
Syndrome›blind loop›postsurgical
Syndrome›malabsorption›postsurgical
Complication›gastrointestinal›postoperative›malabsorption NEC
Disorder›intestine, intestinal›carbohydrate absorption NEC›postoperative

Related codes at this level

Codes that share K91. If K91.2 is not quite right, the correct code is usually one of these.

Questions about K91.2

Is K91.2 a billable ICD-10-CM code?: Yes. K91.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does K91.2 sit in the tabular list?: Diseases of the digestive system (K00-K95), in the block Other diseases of the digestive system (K90-K95).
What cannot be coded together with K91.2?: K91.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.