ICD-10 Code Y83.6: Removal of Other Organ (Partial) (Total)
ICD-10 Code Y83.6 is the external cause code for removal of another organ, partial or total, when that removal leads to an abnormal patient reaction or later complication. It’s assigned only as a secondary code, added alongside the primary diagnosis it caused. This guide covers where Y83.6 sits in the Y83 hierarchy, sequencing rules, applicable […]
ICD-10 Code H52.11: Myopia, right eye
ICD-10 Code H52.11 is the billable, laterality-specific code for myopia in the right eye. It replaces the non-billable parent code H52.1, which payers reject because it doesn’t specify which eye is affected. This guide covers the H52.11 definition, laterality rules, related codes, documentation requirements, and the CPT codes billed alongside it in optometry and ophthalmology […]
ICD-10 Code H53.2: Diplopia (double vision) diagnosis guide
ICD-10 Code H53.2 is the diagnosis code ophthalmologists, neurologists, and primary care clinicians use to document diplopia, or double vision. H53.2 works both as a standalone diagnosis and as a secondary code once an underlying cause is identified, so correct sequencing has a direct effect on claim acceptance. This guide covers the code’s definition, billing […]
ICD-10 Code H16.9: Unspecified keratitis billing and coding guide
ICD-10 Code H16.9 is the billable diagnosis code for unspecified keratitis — corneal inflammation where the clinical presentation doesn’t support a more specific subtype. It’s one of the most frequently overused unspecified codes in ophthalmology billing, often used by default rather than as the last resort it’s meant to be. Precision matters throughout ophthalmic coding. […]
ICD-10 Code S52.532N: Colles’ fracture left radius nonunion
ICD-10 Code S52.532N: Definition and clinical description ICD-10 Code S52.532N is the billable, specific diagnosis code for Colles’ fracture of the left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion. It’s valid for claims with a date of service on or after October 1, 2015, and remains current through FY2026 […]
ICD-10 code O11.1: Pre-existing hypertension with pre-eclampsia
ICD-10 Code O11.1 is the billable diagnosis code for pre-existing hypertension with superimposed pre-eclampsia in the first trimester, before 14 weeks gestation. It sits within the pre-eclampsia ICD-10 coding family and always pairs with a secondary code from the O10 category to identify the type of underlying hypertension. This reference guide covers ICD-10 Code O11.1’s […]
ICD-10 Code I25.2: Old myocardial infarction coding guide
ICD-10 Code I25.2, titled “Old myocardial infarction,” classifies a past MI that a patient has experienced but which is no longer active or symptomatic at the time of the encounter. The CDC/NCHS ICD-10-CM web tool defines it as a past myocardial infarction diagnosed by ECG or other investigation, but currently presenting no symptoms. This distinction […]
ICD-10 Code N86: Erosion and ectropion of cervix uteri
ICD-10 Code N86: Definition and clinical description Cervical ectropion is one of the most underestimated documentation challenges in gynecology billing. Many coders default to the wrong code category, confusing a benign structural finding with an inflammatory condition and triggering denials that could have been avoided with a single reference check. OB-GYN practice management software that […]
ICD-10 Code H91.91: Unspecified hearing loss, right ear
ICD-10 Code H91.91 is the billable ICD-10-CM code for hearing loss in the right ear when the type hasn’t yet been determined. Chapter 8 (Diseases of the ear and mastoid process, H60-H95) classifies it within the block covering Other disorders of ear (H90-H94), under category H91 (Other and unspecified hearing loss). The code is valid […]
ICD-10 Code N29: Other disorders of kidney and ureter
ICD-10 Code N29 is a billable ICD-10-CM diagnosis code for other disorders of kidney and ureter in diseases classified elsewhere. It’s a manifestation code, so it can never stand alone on a claim — the underlying disease driving the renal involvement must be coded first. Miss that sequencing step and the claim denies or triggers […]