Is ICD-10-CM code B94 billable?

No, B94 (Sequelae of other and unspecified infectious and parasitic diseases) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code B94 belong to?

B94 belongs to Chapter 1 of the ICD-10-CM tabular list: A00–B99 (Certain Infectious and Parasitic Diseases).

B94Not billable, use a more specific code below

Sequelae of other and unspecified infectious and parasitic diseases

In Sequelae of infectious and parasitic diseases (B90-B94), chapter 1: Certain Infectious and Parasitic Diseases

5 billable codes under B94: none are a CC or MCC; none map to an HCC.

Instructional notes

Also applies, from Sequelae of infectious and parasitic diseases (B90-B94)

These notes sit on B90-B94 and apply to every code under it, including B94.

Code first: code the underlying condition first, then this code

condition resulting from (sequela) the infectious or parasitic disease

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.

Human Immunodeficiency Virus (HIV) Infections (page 19)
Infectious agents as the cause of diseases classified to other chapters (page 22)
Infections resistant to antibiotics (page 22)
Sepsis, Severe Sepsis, and Septic Shock (page 23)
Methicillin Resistant Staphylococcus aureus (MRSA) Conditions (page 27)
Zika virus infections (page 28)
Coronavirus infections (page 28)

Read Section I.C.1 (page 19)

All codes under B94

B94 can't be used on a claim. Pick a billable code below; grey headings group them.

B94 MS-DRGs

As the principal diagnosis, the billable codes under B94 group to these 8 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 867 Other Infectious and Parasitic Diseases Diagnoses with MCC (3 of 5 codes)
DRG 868 Other Infectious and Parasitic Diseases Diagnoses with CC (3 of 5 codes)
DRG 869 Other Infectious and Parasitic Diseases Diagnoses without CC/MCC (3 of 5 codes)
DRG 091 Other Disorders of Nervous System with MCC (1 of 5 codes)
DRG 092 Other Disorders of Nervous System with CC (1 of 5 codes)
DRG 093 Other Disorders of Nervous System without CC/MCC (1 of 5 codes)
DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (1 of 5 codes)
DRG 125 Other Disorders of the Eye without MCC (1 of 5 codes)

Other codes that refer to B94

Notes on these codes point to B94.

Z83.1 Includes: Conditions classifiable to A00-B19, B25-B94, B99
Z86.1 Excludes1: sequelae of infectious and parasitic diseases (B90-B94)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Infectious Diseases

Germs, or microbes, are found everywhere - in the air, soil, and water. There are also germs on your skin and in your body. Many of them are harmless, and some can even be helpful. But some of them can make you sick. Infectious diseases are diseases that are caused by germs.

Parasitic Diseases

Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.