ICD10BillableValid for clinical use
ICD-10 Code B94.9: Sequelae of unspecified infectious and parasitic disease
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).
When is it used?
- May be used when a clinician documents sequelae of unspecified infectious and parasitic disease in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
1Certain infectious and parasitic diseases (A00-B99)
block
B90-B94Sequelae of infectious and parasitic diseases
category
B94Sequelae of other and unspecified infectious and parasitic diseases
currentB94
Official coding notes
Excludes2 (may code together if documented)
- post COVID-19 condition (U09.9)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Infectious Disease SpecialistGeneral Physician
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 720349002high
Sequelae of infectious disease
Source: SNOMED International ICD-10 map
SNOMED_CT 1090241000119103high
Acquired stenosis of external ear canal secondary to infection
Source: SNOMED International ICD-10 map
SNOMED_CT 1162256002high
Hydrocephalus following infectious disease
Source: SNOMED International ICD-10 map
SNOMED_CT 1162279001high
Kyphosis due to and following infection
Source: SNOMED International ICD-10 map
SNOMED_CT 1162318001high
Lordosis deformity of spine due to and following infection
Source: SNOMED International ICD-10 map
SNOMED_CT 235725003high
Malabsorption caused by infective agent
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
B94.9
Common synonyms
Sequelae of unspecified infectious and parasitic diseaseSequelae of infectious and parasitic disease
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.