ICD-10 Code for High

The ICD-10-CM 2027 alphabetic index lists high with the subterms below. More specific codes depend on the details documented, as listed in the official index (23 codes, 17 billable).

Index entries for High

altitude effects – T70.20 (header)
- anoxia – T70.29 (header)
- on
  - ears – T70.0 (header)
  - sinuses – T70.1 (header)
- polycythemia – D75.1
arch
- foot – Q66.7- (header)
- palate, congenital – Q38.5
arterial tension – see Hypertension
basal metabolic rate – R94.8
blood pressure – see also Hypertension
- borderline – R03.0
- reading (incidental) (isolated) (nonspecific) – R03.0
cholesterol – E78.00
- with high triglycerides – E78.2
diaphragm (congenital) – Q79.1
expressed emotional level within family – Z63.8
head at term – O32.4 (header)
palate, congenital – Q38.5
risk
- infant NEC – Z76.2
- sexual behavior (heterosexual) – Z72.51
  - bisexual – Z72.53
  - homosexual – Z72.52
scrotal testis, testes
- bilateral – Q53.23
- unilateral – Q53.13
temperature (of unknown origin) – R50.9
thoracic rib – Q76.6
triglycerides – E78.1
- with high cholesterol – E78.2

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.