ICD-10 code H22: Disorders of iris and ciliary body
ICD-10 Code H22 identifies Disorders of iris and ciliary body in diseases classified elsewhere. It sits within the ICD-10-CM block H15-H22 (Disorders of sclera, cornea, iris and ciliary body), which itself falls under chapter H00-H59 (Diseases of the eye and adnexa). The same block also covers corneal and sclera codes such as H17.9 (unspecified corneal […]
ICD-10 code H26.8: Other specified cataract
ICD-10 code H26.8 designates other specified cataract: a cataract type documented in the clinical record that does not fit any of the named H26 subcategories. Coders assign it when the note specifies a presentation such as adherent, anterior subcapsular, or total cataract that does not map to H26.0 through H26.4. This guide covers H26.8’s synonyms, […]
ICD-10 code H26.9: Unspecified cataract
ICD-10 Code H26.9 represents Unspecified Cataract within the ICD-10-CM classification, maintained jointly by the Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS). It belongs to Chapter 7 (Diseases of the Eye and Adnexa, H00-H59), specifically the Disorders of Lens block (H25-H28), under the parent category H26 Other cataract. […]
ICD-10 code H01.9: Unspecified inflammation of eyelid
ICD-10 code H01.9 is the diagnosis code for unspecified inflammation of eyelid, a billable FY2026 code valid for claims with a date of service from October 1, 2025 through September 30, 2026. This guide covers the code’s hierarchy, DRG grouping, documentation requirements, and when to use H01.9 instead of a more specific eyelid code. ICD-10 […]
ICD-10 code H34.9: Unspecified retinal vascular occlusion
ICD-10 Code H34.9 describes Unspecified Retinal Vascular Occlusion. It applies when a retinal vascular occlusion is confirmed but the clinical record does not identify the vessel type (artery vs. vein), the exact location (central vs. branch), or which eye is affected. According to the CDC/NCHS ICD-10-CM web tool, H34.9 is a valid, billable 2026 ICD-10-CM […]
ICD-10 code F23: Brief psychotic disorder
ICD-10 Code F23 is the billable ICD-10-CM diagnosis code for brief psychotic disorder: a sudden psychotic episode lasting more than one day but less than one month, with full return to premorbid functioning. F23 is also the code many clinicians reach for when documenting acute psychosis, which makes its narrow duration window and wide differential […]
ICD-10 code E86.0: Dehydration diagnosis, billing, and CPT pairings
E86.0 is the billable ICD-10-CM code for dehydration, most often paired with CPT 96360 for IV hydration and 99213-99285 for E&M visits.
ICD-10 code E41: Nutritional marasmus
ICD-10 code E41 (Nutritional marasmus) is a billable ICD-10-CM diagnosis code for severe protein-calorie malnutrition with the classic “skin and bones” presentation: Extreme wasting and muscle loss from chronic caloric deficiency, without the edema seen in kwashiorkor. Assigning it correctly depends entirely on what the physician documents – the difference between E41, E42, and E43 […]
ICD-10 code F59: Unspecified behavioral syndromes, billing guide
ICD-10 Code F59 covers unspecified behavioral syndromes linked to physiological disturbances. Learn billability, documentation rules, crosswalk to 306.8, and related F50–F59 codes.
ICD-10 code F73: Profound intellectual disabilities
ICD-10 Code F73 is billable for Profound intellectual disabilities (IQ below 20-25), requiring documented adaptive behavior deficits.