2027 ICD-10-CM Diagnosis Code B34.8Other viral infections of unspecified site
ICD-10-CM Codes›A00–B99›B25-B34›B34
- Billable — Valid for Submission
- Not Chronic
B34.8 is a billable ICD-10-CM diagnosis code for other viral infections of unspecified site. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 865 through 866. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Viral infection.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Disease caused by BK polyomavirus
- Disease caused by Human bocavirus
- Disease caused by JC polyomavirus
- Disease caused by Parvoviridae
- Disease caused by Respirovirus
- Disease caused by Rhinovirus
- Erbovirus infection
- Healthcare associated parainfluenza virus disease
- Hendra virus infection
- Human Bocavirus present
- Human metapneumovirus present
- Human parainfluenza virus present
- Human parechovirus 1 or human parechovirus 2
- Human rhinovirus present
- Infection caused by Coltavirus
- Infection caused by Henipavirus
- Infection caused by Human parainfluenza virus 1
- Infection caused by Human parainfluenza virus 2
- Infection caused by Human parainfluenza virus 3
- Infection caused by Human parainfluenza virus 4
- Infection caused by Roseolovirus
- Infection caused by Rubulavirus
- Parainfluenza
- Respiratory syncytial virus A present
- Respiratory syncytial virus B present
- Respiratory syncytial virus untyped strain present
- Sendai virus infection
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to B34.8: its own notes plus those printed at B34 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- diseases generally recognized as communicable or transmissible
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- 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
Add a second code, after this one, to fully describe the condition.
- code to identify resistance to antimicrobial drugs (Z16.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name B34.8, its category, or a range that includes it.
Applicable To 1
These notes mention B34.8.
- O98.5 Other viral diseases complicating pregnancy, childbirth and the puerperium
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Rhinovirus infection NEC B34.8
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Viral Infections
Viruses are very tiny germs. They are made of genetic material (either DNA or RNA) inside of a protein coating. There are a huge number of viruses on earth. Only a small number of them can infect humans. Those viruses can infect our cells, which may cause disease.
The full article covers:
- What are viruses?
- How are viruses spread?
- How do viruses cause disease?
- What are the treatments for viral infections?
- Can viral infections be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert B34.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B34.8Overview
What is the ICD-10 code for other viral infections of unspecified site?
The ICD-10-CM code for other viral infections of unspecified site is B34.8 (sometimes written as B348). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is B34.8 (Viral infection of unspecified site) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other viral infections of unspecified site on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does B34.8 group to?
When other viral infections of unspecified site is the principal diagnosis on an inpatient stay, it groups to MS-DRG 866, 865, with relative weights from 0.8691 to 1.3153 depending on complications. Higher weights mean higher Medicare reimbursement.
Can B34.8 be reported with A63.0?
Not as a rule. The Excludes1 note at B34, which applies to B34.8, lists "anogenital human papillomavirus infection (A63.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of B34.8?
Under the General Equivalence Mappings, other viral infections of unspecified site converts to ICD-9-CM 079.89 (oth specf viral infectn). The mapping is approximate, so confirm the match fits the documentation.
