H21.542
BillablePosterior synechiae (iris), left eye
Posterior synechiae (iris), left eye
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
- •diabetes mellitus related eye conditions, , ,E09.3, E10.3, E11.3, E13.3
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury (trauma) of eye and orbitS05
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •syphilis related eye disorders, , ,A50.01, A50.3, A51.43, A52.71
- •sympathetic uveitisH44.1
Related Codes(3)
Also Known As / Clinical Terms(20)
SNOMED CT
- Posterior synechiae111512005
- Adhesion of pupillary membrane445922006
- Angle-closure due to posterior synechiae1286853005
- Secondary angle-closure - synechial1286853005
- Angle-closure of left eye due to posterior synechiae1300229003
- Secondary angle-closure of left eye - synechial1300229003
- Adhesion of pupillary membrane of left eye338381000119108
- Posterior synechiae of iris of left eye338581000119101
UMLS
Clinical Terms
- Secondary angle-closure - synechial
- Angle-closure due to posterior synechiae
- Posterior synechiae of iris of left eye
- Posterior synechiae
- Angle-closure of left eye due to posterior synechiae
- Adhesion of pupillary membrane of left eye
- Secondary angle-closure of left eye - synechial
- Posterior synechiae of iris of left eye (disorder)
- Adhesion of pupillary membrane
Frequently Asked Questions
What is the ICD-10 code for posterior synechiae (iris), left eye?
The ICD-10-CM code for posterior synechiae (iris), left eye is H21.542. The full clinical description is "Posterior synechiae (iris), left eye". H21.542 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code H21.542 mean?
ICD-10-CM code H21.542 represents “Posterior synechiae (iris), left eye”. It is classified under Chapter 7: Diseases of the Eye and Adnexa and is a billable/specific code that can be used on a claim.
Is H21.542 a billable code?
Yes, H21.542 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is H21.542 in?
H21.542 is in Chapter 7: Diseases of the Eye and Adnexa (codes H00-H59).
What codes cannot be used with H21.542?
H21.542 has Excludes1 notes indicating codes that cannot be used together with it, including: corectopia (Q13.2).
What SNOMED CT codes does H21.542 map to?
H21.542 maps to 6 SNOMED CT concepts: 445922006, 338381000119108, 1286853005, 1300229003, 111512005, and 1 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for H21.542?
H21.542 is linked to 1 UMLS Concept Unique Identifier: C2880552. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does H21.542 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like posterior synechiae (iris), left eye 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 H21.542?
There is no direct ICD-11 mapping available for H21.542 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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.