All ICD10 Codes

B05

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Measles

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •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)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here)
  • 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
  • morbilli
Excludes1(Not coded here)
  • subacute sclerosing panencephalitis (A81.1)

Clinical Hierarchy

CH1Certain infectious and parasitic diseases (A00-B99)
B00-B09Viral infections characterized by skin and mucous membrane lesions (B00-B09)
B05Measles
B05.0Measles complicated by encephalitis
B05.1Measles complicated by meningitis
B05.2Measles complicated by pneumonia
B05.3Measles complicated by otitis media
B05.4Measles with intestinal complications
B05.8Measles with other complications
B05.9Measles without complication

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B05:

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

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to B05. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)2 unique routes
in (due to)
measles→B05
postmeasles→B05
Encephalomyelitis1 unique routes
postmeasles→B05
Keratitis (nodular) (nonulcerative) (simple) (zonular)2 unique routes
in (due to)
measles→B05
postmeasles→B05
Keratoconjunctivitis1 unique routes
postmeasles→B05
Koplik's spots1 unique routes
Direct index entry→B05
Measles (black) (hemorrhagic) (suppressed)8 unique routes
Direct index entry→B05
with(7 variants)
complications NEC→B05
encephalitis→B05
intestinal complications→B05
keratitis (keratoconjunctivitis)→B05
meningitis→B05
otitis media→B05
pneumonia→B05
Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)2 unique routes
in (due to)
measles→B05
postmeasles→B05
Otitis (acute)3 unique routes
media (hemorrhagic) (staphylococcal) (streptococcal)(3 variants)
acute, subacute
necrotizing
in
measles→B05
in (due to) (with)
measles→B05
postmeasles→B05
Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)3 unique routes
giant cell (measles)→B05
in (due to)
measles→B05
postmeasles→B05
Postmeasles complication NEC1 unique routes
Direct index entry→B05
Spots, spotting (in) (of)1 unique routes
Koplik's→B05

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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