ICD-10 code H17.9: Unspecified corneal scar and opacity
ICD-10 Code H17.9: Definition and clinical description ICD-10 Code H17.9 describes Unspecified corneal scar and opacity. It is a billable ICD-10-CM diagnosis code used when a patient presents with a corneal scar or opacity that cannot be classified under a more specific H17.x subcode based on the available clinical documentation. It is the code coders […]
ICD-10 code A09: Infectious gastroenteritis and colitis, unspecified
ICD-10 code A09 is the billable ICD-10-CM diagnosis code for infectious gastroenteritis and colitis, unspecified. It applies when the condition is of confirmed or presumed infectious origin but no specific organism is identified. Per the Centers for Medicare and Medicaid Services (CMS), A09 sits in the A00-B99 infectious diseases chapter. Within that chapter, the A00-A09 […]
ICD-10 code A90: Dengue fever [classical dengue]
The ICD-10 code for dengue fever is A90, the billable diagnosis code for dengue fever [classical dengue] in ICD-10-CM. There is no separate “unspecified dengue” code: A90 covers classical dengue, while dengue hemorrhagic fever is coded separately as A91. This reference covers the A90 code definition, billable status, Excludes1 rules, the clinical criteria that separate […]
ICD-10 code H42: Glaucoma in diseases classified elsewhere
ICD-10 Code H42 (Glaucoma in diseases classified elsewhere) is a billable diagnosis code for glaucoma occurring as a manifestation of a systemic disease coded elsewhere in ICD-10-CM. Unlike the H40.x range, it carries a Code First instruction, so the underlying systemic condition must be sequenced ahead of H42 on every claim. ICD-10 Code H42: Definition […]
ICD-10 code H25.9: Unspecified age-related cataract
ICD-10 Code H25.9 is the official CMS ICD-10-CM designation for unspecified age-related cataract, classified under Chapter 7 (Diseases of the eye and adnexa, H00-H59), block H25-H28 (Disorders of lens). It applies to adult patients aged 15-124 years and carries a billable/specific designation for the 2026 code year. This guide covers the code’s billable status, how […]
ICD-10 code D28.0: Benign neoplasm of vulva
ICD-10 Code D28.0: Definition and clinical description ICD-10 Code D28.0 is a billable OB/GYN EMR software-supported diagnosis code representing a benign neoplasm of the vulva. Clinicians, coders, and billing staff at gynecologic and OB/GYN practices use this code when pathology confirms a non-malignant growth in the external female genitalia. Accurate assignment prevents claim denials and […]
ICD-10 code E16.1: Other hypoglycemia diagnosis guide
ICD-10 code E16.1 (“Other hypoglycemia”) is a billable ICD-10-CM diagnosis code for non-diabetic, non-drug-induced, non-neonatal low blood sugar. It covers alimentary, autoimmune, reactive, and functional hypoglycemia and hyperinsulinism NOS. E16.1 sits in category E16 (Other disorders of pancreatic internal secretion), Chapter 4 (Endocrine, nutritional and metabolic diseases, E00-E89). The code applies to hypoglycemia that is […]
ICD-10 code C49.4: Malignant neoplasm of connective and soft tissue of abdomen
ICD-10 code C49.4 is the ICD-10-CM diagnosis code for malignant neoplasm of connective and soft tissue of the abdomen. It sits within the C49 category (“Malignant neoplasm of other connective and soft tissue”), which falls under the broader WHO ICD-10 classification chapter for neoplasms (C00-D49). Connective and soft tissue of the abdomen includes structures such […]
ICD-10 code C52: Malignant neoplasm of vagina
ICD-10 code C52 is a billable, specific ICD-10-CM diagnosis code that identifies a primary malignant neoplasm of the vagina. Maintained by the Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS) under the authority of the World Health Organization, C52 is valid for the 2026 ICD-10-CM edition and applies […]
ICD-10 code D67: Hereditary factor IX deficiency (Hemophilia B)
ICD-10 Code D67 is assigned for hereditary factor IX deficiency, a genetic bleeding disorder caused by insufficient or absent levels of clotting factor IX in the blood. Factor IX is a serine protease that plays a critical role in the intrinsic coagulation cascade. Without adequate factor IX activity, fibrin clot formation is impaired, leading to […]