H40.9
BillableUnspecified glaucoma
Unspecified glaucoma
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
Related Codes(8)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(33)
SNOMED CT
- Glaucoma23986001
- Glaucoma in endocrine, nutritional and metabolic diseases193556009
- Iatrogenic glaucoma232081005
- Glaucoma due to diabetes mellitus860798008
- Bilateral glaucoma1304240002
- Glaucoma of bilateral eyes1304240002
- Glaucoma of both eyes1304240002
- Glaucoma due to type 2 diabetes mellitus41911000119107
- Glaucoma of left eye12239461000119106
- Glaucoma of right eye12239501000119106
UMLS
Clinical Terms
- Glaucoma in endocrine, nutritional and metabolic diseases
- Iatrogenic glaucoma
- Glaucoma (H40-H42)
- Glaucoma NOS
- Bilateral glaucoma
- Glaucoma (disorder)
- Glaucoma of bilateral eyes
- Glaucoma due to diabetes mellitus
- Glaucoma, unspecified
- Glaucoma due to type 2 diabetes mellitus
- glaucomas
- Glaucoma of both eyes
- Glaucoma of right eye
- Glaucoma of left eye
Frequently Asked Questions
What is the ICD-10 code for unspecified glaucoma?
The ICD-10-CM code for unspecified glaucoma is H40.9. The full clinical description is "Unspecified glaucoma". H40.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code H40.9 mean?
ICD-10-CM code H40.9 represents “Unspecified glaucoma”. 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 H40.9 a billable code?
Yes, H40.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is H40.9 in?
H40.9 is in Chapter 7: Diseases of the Eye and Adnexa (codes H00-H59).
What codes cannot be used with H40.9?
H40.9 has Excludes1 notes indicating codes that cannot be used together with it, including: absolute glaucoma (H44.51-); congenital glaucoma (Q15.0); traumatic glaucoma due to birth injury (P15.3).
What SNOMED CT codes does H40.9 map to?
H40.9 maps to 8 SNOMED CT concepts: 1304240002, 23986001, 860798008, 41911000119107, 193556009, and 3 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for H40.9?
H40.9 is linked to 1 UMLS Concept Unique Identifier: C0017601. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does H40.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified glaucoma 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 H40.9?
H40.9 maps to the ICD-11 code: 9C61.Z (Glaucoma, unspecified).
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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.