Is C94.4 a billable ICD-10-CM code?

No. C94.4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C94.4 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).

What cannot be coded together with C94.4?

C94.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

C94.4

C94.4 — Acute panmyelosis with myelofibrosis

Non-billable headerICD-10-CM

C94.4 is a non-billable header ICD-10-CM code for acute panmyelosis with myelofibrosis. 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.

myelofibrosis NOS (D75.81)
secondary myelofibrosis NOS (D75.81)

Inclusion terms

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

Acute myelofibrosis

Other codes that can never be billed with C94.4

These codes carry an Excludes1 note pointing at C94.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C94.4 alone.

D47.4Osteomyelofibrosis
D75.81Myelofibrosis

Risk adjustment

C94.4 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 C94.4

3 child codes. Green means billable.

Related codes at this level

Codes that share C94. If C94.4 is not quite right, the correct code is usually one of these.

Questions about C94.4

Is C94.4 a billable ICD-10-CM code?: No. C94.4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C94.4 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).
What cannot be coded together with C94.4?: C94.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.