2025 7th Character ICD-10-CM Codes - Page 103
The 2025 7th Character ICD-10-CM Codes list includes 51,178 codes requiring a seventh character to indicate the type of encounter: initial, subsequent, or sequela. These codes are essential for injuries, poisonings, fractures, and other external cause conditions. Using the correct 7th character ensures claims reflect the patient’s treatment stage, supports accurate reimbursement, and prevents errors or denials. Coders must confirm that documentation supports the encounter type assigned.
Y37.451A - Military operations involving combat using blunt or piercing object, civilian, initial encounter Billable
Y37.451D - Military operations involving combat using blunt or piercing object, civilian, subsequent encounter Billable
Y37.451S - Military operations involving combat using blunt or piercing object, civilian, sequela Billable
Y37.460A - Military operations involving intentional restriction of air and airway, military personnel, initial encounter Billable
Y37.460D - Military operations involving intentional restriction of air and airway, military personnel, subsequent encounter Billable
Y37.460S - Military operations involving intentional restriction of air and airway, military personnel, sequela Billable
Y37.461A - Military operations involving intentional restriction of air and airway, civilian, initial encounter Billable
Y37.461D - Military operations involving intentional restriction of air and airway, civilian, subsequent encounter Billable
Y37.461S - Military operations involving intentional restriction of air and airway, civilian, sequela Billable
Y37.470A - Military operations involving unintentional restriction of air and airway, military personnel, initial encounter Billable
Y37.470D - Military operations involving unintentional restriction of air and airway, military personnel, subsequent encounter Billable
Y37.470S - Military operations involving unintentional restriction of air and airway, military personnel, sequela Billable
Y37.471A - Military operations involving unintentional restriction of air and airway, civilian, initial encounter Billable
Y37.471D - Military operations involving unintentional restriction of air and airway, civilian, subsequent encounter Billable
Y37.471S - Military operations involving unintentional restriction of air and airway, civilian, sequela Billable
Y37.490A - Military operations involving other forms of conventional warfare, military personnel, initial encounter Billable
Y37.490D - Military operations involving other forms of conventional warfare, military personnel, subsequent encounter Billable
Y37.490S - Military operations involving other forms of conventional warfare, military personnel, sequela Billable
Y37.491A - Military operations involving other forms of conventional warfare, civilian, initial encounter Billable
Y37.491D - Military operations involving other forms of conventional warfare, civilian, subsequent encounter Billable
Y37.491S - Military operations involving other forms of conventional warfare, civilian, sequela Billable
Y37.500A - Military operations involving unspecified effect of nuclear weapon, military personnel, initial encounter Billable
Y37.500D - Military operations involving unspecified effect of nuclear weapon, military personnel, subsequent encounter Billable
Y37.500S - Military operations involving unspecified effect of nuclear weapon, military personnel, sequela Billable
Y37.501A - Military operations involving unspecified effect of nuclear weapon, civilian, initial encounter Billable
Y37.501D - Military operations involving unspecified effect of nuclear weapon, civilian, subsequent encounter Billable
Y37.501S - Military operations involving unspecified effect of nuclear weapon, civilian, sequela Billable
Y37.510A - Military operations involving direct blast effect of nuclear weapon, military personnel, initial encounter Billable
Y37.510D - Military operations involving direct blast effect of nuclear weapon, military personnel, subsequent encounter Billable
Y37.510S - Military operations involving direct blast effect of nuclear weapon, military personnel, sequela Billable
Y37.511A - Military operations involving direct blast effect of nuclear weapon, civilian, initial encounter Billable
Y37.511D - Military operations involving direct blast effect of nuclear weapon, civilian, subsequent encounter Billable
Y37.511S - Military operations involving direct blast effect of nuclear weapon, civilian, sequela Billable
Y37.520A - Military operations involving indirect blast effect of nuclear weapon, military personnel, initial encounter Billable
Y37.520D - Military operations involving indirect blast effect of nuclear weapon, military personnel, subsequent encounter Billable
Y37.520S - Military operations involving indirect blast effect of nuclear weapon, military personnel, sequela Billable
Y37.521A - Military operations involving indirect blast effect of nuclear weapon, civilian, initial encounter Billable
Y37.521D - Military operations involving indirect blast effect of nuclear weapon, civilian, subsequent encounter Billable
Y37.521S - Military operations involving indirect blast effect of nuclear weapon, civilian, sequela Billable
Y37.530A - Military operations involving thermal radiation effect of nuclear weapon, military personnel, initial encounter Billable
Y37.530D - Military operations involving thermal radiation effect of nuclear weapon, military personnel, subsequent encounter Billable
Y37.530S - Military operations involving thermal radiation effect of nuclear weapon, military personnel, sequela Billable
Y37.531A - Military operations involving thermal radiation effect of nuclear weapon, civilian, initial encounter Billable
Y37.531D - Military operations involving thermal radiation effect of nuclear weapon, civilian, subsequent encounter Billable
Y37.531S - Military operations involving thermal radiation effect of nuclear weapon, civilian, sequela Billable
Y37.540A - Military operation involving nuclear radiation effects of nuclear weapon, military personnel, initial encounter Billable
Y37.540D - Military operation involving nuclear radiation effects of nuclear weapon, military personnel, subsequent encounter Billable
Y37.540S - Military operation involving nuclear radiation effects of nuclear weapon, military personnel, sequela Billable
Y37.541A - Military operation involving nuclear radiation effects of nuclear weapon, civilian, initial encounter Billable
Y37.541D - Military operation involving nuclear radiation effects of nuclear weapon, civilian, subsequent encounter Billable
Y37.541S - Military operation involving nuclear radiation effects of nuclear weapon, civilian, sequela Billable
Y37.590A - Military operation involving other effects of nuclear weapons, military personnel, initial encounter Billable
Y37.590D - Military operation involving other effects of nuclear weapons, military personnel, subsequent encounter Billable
Y37.590S - Military operation involving other effects of nuclear weapons, military personnel, sequela Billable
Y37.591A - Military operation involving other effects of nuclear weapons, civilian, initial encounter Billable
Y37.591D - Military operation involving other effects of nuclear weapons, civilian, subsequent encounter Billable
Y37.591S - Military operation involving other effects of nuclear weapons, civilian, sequela Billable
Y37.6X0A - Military operations involving biological weapons, military personnel, initial encounter Billable
Y37.6X0D - Military operations involving biological weapons, military personnel, subsequent encounter Billable
Y37.6X0S - Military operations involving biological weapons, military personnel, sequela Billable
Y37.6X1A - Military operations involving biological weapons, civilian, initial encounter Billable
Y37.6X1D - Military operations involving biological weapons, civilian, subsequent encounter Billable
Y37.6X1S - Military operations involving biological weapons, civilian, sequela Billable
Y37.7X0A - Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter Billable
Y37.7X0D - Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, subsequent encounter Billable
Y37.7X0S - Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, sequela Billable
Y37.7X1A - Military operations involving chemical weapons and other forms of unconventional warfare, civilian, initial encounter Billable
Y37.7X1D - Military operations involving chemical weapons and other forms of unconventional warfare, civilian, subsequent encounter Billable
Y37.7X1S - Military operations involving chemical weapons and other forms of unconventional warfare, civilian, sequela Billable
Y37.90XA - Military operations, unspecified, initial encounter Billable
Y37.90XD - Military operations, unspecified, subsequent encounter Billable
Y37.90XS - Military operations, unspecified, sequela Billable
Y37.91XA - Military operations involving unspecified weapon of mass destruction [WMD], initial encounter Billable
Y37.91XD - Military operations involving unspecified weapon of mass destruction [WMD], subsequent encounter Billable
Y37.91XS - Military operations involving unspecified weapon of mass destruction [WMD], sequela Billable
Y37.92XA - Military operations involving friendly fire, initial encounter Billable
Y37.92XD - Military operations involving friendly fire, subsequent encounter Billable
Y37.92XS - Military operations involving friendly fire, sequela Billable
Y38.0X1A - Terrorism involving explosion of marine weapons, public safety official injured, initial encounter Billable
Y38.0X1D - Terrorism involving explosion of marine weapons, public safety official injured, subsequent encounter Billable
Y38.0X1S - Terrorism involving explosion of marine weapons, public safety official injured, sequela Billable
Y38.0X2A - Terrorism involving explosion of marine weapons, civilian injured, initial encounter Billable
Y38.0X2D - Terrorism involving explosion of marine weapons, civilian injured, subsequent encounter Billable
Y38.0X2S - Terrorism involving explosion of marine weapons, civilian injured, sequela Billable
Y38.0X3A - Terrorism involving explosion of marine weapons, terrorist injured, initial encounter Billable
Y38.0X3D - Terrorism involving explosion of marine weapons, terrorist injured, subsequent encounter Billable
Y38.0X3S - Terrorism involving explosion of marine weapons, terrorist injured, sequela Billable
Y38.1X1A - Terrorism involving destruction of aircraft, public safety official injured, initial encounter Billable
Y38.1X1D - Terrorism involving destruction of aircraft, public safety official injured, subsequent encounter Billable
Y38.1X1S - Terrorism involving destruction of aircraft, public safety official injured, sequela Billable
Y38.1X2A - Terrorism involving destruction of aircraft, civilian injured, initial encounter Billable
Y38.1X2D - Terrorism involving destruction of aircraft, civilian injured, subsequent encounter Billable
Y38.1X2S - Terrorism involving destruction of aircraft, civilian injured, sequela Billable
Y38.1X3A - Terrorism involving destruction of aircraft, terrorist injured, initial encounter Billable
Y38.1X3D - Terrorism involving destruction of aircraft, terrorist injured, subsequent encounter Billable
Y38.1X3S - Terrorism involving destruction of aircraft, terrorist injured, sequela Billable
Y38.2X1A - Terrorism involving other explosions and fragments, public safety official injured, initial encounter Billable
Y38.2X1D - Terrorism involving other explosions and fragments, public safety official injured, subsequent encounter Billable
Y38.2X1S - Terrorism involving other explosions and fragments, public safety official injured, sequela Billable
Y38.2X2A - Terrorism involving other explosions and fragments, civilian injured, initial encounter Billable
Y38.2X2D - Terrorism involving other explosions and fragments, civilian injured, subsequent encounter Billable
Y38.2X2S - Terrorism involving other explosions and fragments, civilian injured, sequela Billable
Y38.2X3A - Terrorism involving other explosions and fragments, terrorist injured, initial encounter Billable
Y38.2X3D - Terrorism involving other explosions and fragments, terrorist injured, subsequent encounter Billable
Y38.2X3S - Terrorism involving other explosions and fragments, terrorist injured, sequela Billable
Y38.3X1A - Terrorism involving fires, conflagration and hot substances, public safety official injured, initial encounter Billable
Y38.3X1D - Terrorism involving fires, conflagration and hot substances, public safety official injured, subsequent encounter Billable
Y38.3X1S - Terrorism involving fires, conflagration and hot substances, public safety official injured, sequela Billable
Y38.3X2A - Terrorism involving fires, conflagration and hot substances, civilian injured, initial encounter Billable
Y38.3X2D - Terrorism involving fires, conflagration and hot substances, civilian injured, subsequent encounter Billable
Y38.3X2S - Terrorism involving fires, conflagration and hot substances, civilian injured, sequela Billable
Y38.3X3A - Terrorism involving fires, conflagration and hot substances, terrorist injured, initial encounter Billable
Y38.3X3D - Terrorism involving fires, conflagration and hot substances, terrorist injured, subsequent encounter Billable
Y38.3X3S - Terrorism involving fires, conflagration and hot substances, terrorist injured, sequela Billable
Y38.4X1A - Terrorism involving firearms, public safety official injured, initial encounter Billable
Y38.4X1D - Terrorism involving firearms, public safety official injured, subsequent encounter Billable
Y38.4X1S - Terrorism involving firearms, public safety official injured, sequela Billable
Y38.4X2A - Terrorism involving firearms, civilian injured, initial encounter Billable
Y38.4X2D - Terrorism involving firearms, civilian injured, subsequent encounter Billable
Y38.4X2S - Terrorism involving firearms, civilian injured, sequela Billable
Y38.4X3A - Terrorism involving firearms, terrorist injured, initial encounter Billable
Y38.4X3D - Terrorism involving firearms, terrorist injured, subsequent encounter Billable
Y38.4X3S - Terrorism involving firearms, terrorist injured, sequela Billable
Y38.5X1A - Terrorism involving nuclear weapons, public safety official injured, initial encounter Billable
Y38.5X1D - Terrorism involving nuclear weapons, public safety official injured, subsequent encounter Billable
Y38.5X1S - Terrorism involving nuclear weapons, public safety official injured, sequela Billable
Y38.5X2A - Terrorism involving nuclear weapons, civilian injured, initial encounter Billable
Y38.5X2D - Terrorism involving nuclear weapons, civilian injured, subsequent encounter Billable
Y38.5X2S - Terrorism involving nuclear weapons, civilian injured, sequela Billable
Y38.5X3A - Terrorism involving nuclear weapons, terrorist injured, initial encounter Billable
Y38.5X3D - Terrorism involving nuclear weapons, terrorist injured, subsequent encounter Billable
Y38.5X3S - Terrorism involving nuclear weapons, terrorist injured, sequela Billable
Y38.6X1A - Terrorism involving biological weapons, public safety official injured, initial encounter Billable
Y38.6X1D - Terrorism involving biological weapons, public safety official injured, subsequent encounter Billable
Y38.6X1S - Terrorism involving biological weapons, public safety official injured, sequela Billable
Y38.6X2A - Terrorism involving biological weapons, civilian injured, initial encounter Billable
Y38.6X2D - Terrorism involving biological weapons, civilian injured, subsequent encounter Billable
Y38.6X2S - Terrorism involving biological weapons, civilian injured, sequela Billable
Y38.6X3A - Terrorism involving biological weapons, terrorist injured, initial encounter Billable
Y38.6X3D - Terrorism involving biological weapons, terrorist injured, subsequent encounter Billable
Y38.6X3S - Terrorism involving biological weapons, terrorist injured, sequela Billable
Y38.7X1A - Terrorism involving chemical weapons, public safety official injured, initial encounter Billable
Y38.7X1D - Terrorism involving chemical weapons, public safety official injured, subsequent encounter Billable
Y38.7X1S - Terrorism involving chemical weapons, public safety official injured, sequela Billable
Y38.7X2A - Terrorism involving chemical weapons, civilian injured, initial encounter Billable
Y38.7X2D - Terrorism involving chemical weapons, civilian injured, subsequent encounter Billable
Y38.7X2S - Terrorism involving chemical weapons, civilian injured, sequela Billable
Y38.7X3A - Terrorism involving chemical weapons, terrorist injured, initial encounter Billable
Y38.7X3D - Terrorism involving chemical weapons, terrorist injured, subsequent encounter Billable
Y38.7X3S - Terrorism involving chemical weapons, terrorist injured, sequela Billable
Y38.80XA - Terrorism involving unspecified means, initial encounter Billable
Y38.80XD - Terrorism involving unspecified means, subsequent encounter Billable
Y38.80XS - Terrorism involving unspecified means, sequela Billable
Y38.811A - Terrorism involving suicide bomber, public safety official injured, initial encounter Billable
Y38.811D - Terrorism involving suicide bomber, public safety official injured, subsequent encounter Billable
Y38.811S - Terrorism involving suicide bomber, public safety official injured, sequela Billable
Y38.812A - Terrorism involving suicide bomber, civilian injured, initial encounter Billable
Y38.812D - Terrorism involving suicide bomber, civilian injured, subsequent encounter Billable
Y38.812S - Terrorism involving suicide bomber, civilian injured, sequela Billable
Y38.891A - Terrorism involving other means, public safety official injured, initial encounter Billable
Y38.891D - Terrorism involving other means, public safety official injured, subsequent encounter Billable
Y38.891S - Terrorism involving other means, public safety official injured, sequela Billable
Y38.892A - Terrorism involving other means, civilian injured, initial encounter Billable
Y38.892D - Terrorism involving other means, civilian injured, subsequent encounter Billable
Y38.892S - Terrorism involving other means, civilian injured, sequela Billable
Y38.893A - Terrorism involving other means, terrorist injured, initial encounter Billable
Y38.893D - Terrorism involving other means, terrorist injured, subsequent encounter Billable
Y38.893S - Terrorism involving other means, terrorist injured, sequela Billable
Y38.9X1A - Terrorism, secondary effects, public safety official injured, initial encounter Billable
Y38.9X1D - Terrorism, secondary effects, public safety official injured, subsequent encounter Billable
Y38.9X1S - Terrorism, secondary effects, public safety official injured, sequela Billable
Y38.9X2A - Terrorism, secondary effects, civilian injured, initial encounter Billable
Y38.9X2D - Terrorism, secondary effects, civilian injured, subsequent encounter Billable
Y38.9X2S - Terrorism, secondary effects, civilian injured, sequela Billable
