I99
Non-billableOther and unspecified disorders of circulatory system
Other and unspecified disorders of circulatory system
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
Child Codes (2)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(4)
Frequently Asked Questions
What is the ICD-10 code for other and unspecified disorders of circulatory system?
The ICD-10-CM code for other and unspecified disorders of circulatory system is I99. The full clinical description is "Other and unspecified disorders of circulatory system". I99 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code I99 mean?
ICD-10-CM code I99 represents “Other and unspecified disorders of circulatory system”. It is classified under Chapter 9: Diseases of the Circulatory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is I99 a billable code?
No, I99 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under I99.
What chapter is I99 in?
I99 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What are the subcategories under I99?
I99 has 2 child codes, including: I99.8 (Other disorder of circulatory system), I99.9 (Unspecified disorder of circulatory system).
What are the UMLS CUIs for I99?
I99 is linked to 1 UMLS Concept Unique Identifier: C0348668. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I99 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other and unspecified disorders of circulatory system affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of I99?
I99 maps to the ICD-11 code: BE2Z (Diseases of the circulatory system, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.