B26

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Mumps

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Instructional Notes

Includes
  • epidemic parotitis
  • infectious parotitis

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
B25-B34Other viral diseases (B25-B34)
B26MumpsNot billable
B26.0Mumps orchitisBillable
B26.1Mumps meningitisBillable
B26.2Mumps encephalitisBillable
B26.3Mumps pancreatitisBillable
B26.8Mumps with other complicationsSubcodes
B26.9Mumps without complicationBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B26:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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