H20.1
Chronic iridocyclitis
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
H20.1 is a non-billable ICD-10-CM code header for chronic iridocyclitis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are H20.10 Chronic iridocyclitis, unspecified eye; H20.11 Chronic iridocyclitis, right eye; H20.12 Chronic iridocyclitis, left eye and H20.13 Chronic iridocyclitis, bilateral. Its coding notes include a Use additional code instruction and 12 Excludes2 entries.
Use additional code
Add the listed code as a secondary code, if known.
This code
- code for any associated cataract (H26.21-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
This code
- posterior cyclitis (H30.2-)
Also from chapter/block level (11 notes)
Inherited from Chapter 7 Diseases of the eye and adnexa
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 7 Diseases of the eye and adnexa
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry