3-2-1 Code It — Chapter 4 Chapter-Specific Coding Guidelines - ICD-10-CM Chapters 11–22

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C HAPTER 4 — C HAPTER S PECIFIC C ODING G UIDELINES : ICD- 10-CM, C HAPTERS 11–22 closed fracture type of fracture that is contained beneath the skin and has intact ligaments and skin. compound fracture see open fracture. fracture break in a bone resulting from injury or a disease process. malunion failure of the ends of a fractured bone to heal (unite). nonunion see malunion. open fracture type of fracture that has an associated open wound.

perinatal period interval of time occurring before, during, and up to 28 days following birth. simple fracture see closed fracture. The international organization that initially creates codes to classify emerging diseases is called the . World Health Organization The US organization that initially creates codes to classify emerging diseases (e.g., COVID-19) is called the . Centers for Medicare and Medicaid Services Official coding guidelines about codes created for coding for special purposes, such as COVID- 19, are located in the appropriate ICD-10-CM . chapter In 2020, category U07 (Emergency Use of U07) was created, and subcategory code U07.1 classifies U07.1

COVID-19. In 2021, category U09 (Post COVID-19 condition) was created, and subcategory code U09.90000 classifies Post COVID-19 condition, unspecified. U09.9 E XERCISE 4.1 – D ISEASES OF THE D IGESTIVE S YSTEM Instructions: Assign the appropriate ICD-10-CM code(s). 1. K50.90 _ Crohn’s disease 2. __ K12.0 __ Canker sore 3. __ K28.1 ___ Acute gastrojejunal ulcer, with perforation 4. __ K21.9 ___ Gastroesophageal reflux 5. __ K40.90 __ Unilateral inguinal hernia  Fall from skateboard at public park (initial encounter) V00.131A , Y92.830 , Y93.51 Correct Check My Work Feedback For code V00.131A, go to ICD-10-CM External Cause of Injuries Index main term Accident, subterm transport, second qualifier pedestrian, third qualifier conveyance, fourth qualifier skateboard, and fifth qualifier fall. Verify the code in the tabular list. Add seventh- character A for initial encounter. According to ICD-10-CM chapter-specific coding guideline "External cause code used for length of treatment, assign the external cause code, with the appropriate 7th character (initial encounter, subsequent encounter, or sequela) for each encounter for which the injury or condition is being treated." For code Y92.830, go to ICD-10-CM External Cause of Injuries Index main term Place of occurrence and subterm park. Verify the code in the tabular list. According to ICD-10-CM chapter-specific coding guideline "Place of occurrence guideline, codes from category Y92, Place of occurrence of the external cause, are secondary codes for use after other external cause codes to identify the location of the patient at the time of injury or other condition. Generally, a place of occurrence code is assigned only once, at the initial encounter for treatment. However, in the rare instance that a new injury occurs during hospitalization, an additional place of occurrence code may be assigned. No 7th characters are used for Y92. Only one code from Y92 should be recorded on a medical record. A place of occurrence code should be used in conjunction with an activity code, Y93. Do not use place of occurrence code Y92.9 if the place is not stated or is not applicable." For code Y93.51, go to ICD-10-CM index main term Activity and subterm skateboarding. Verify the code in the tabular list. According to ICD-10-CM chapter-specific coding guideline "Activity code, assign a code from category Y93, Activity code, to describe the activity of the patient at the time the injury or other health condition occurred. An activity code is used only once, at the initial encounter for treatment. Only one code from Y93 should be recorded on a medical record. The activity codes are not applicable to poisonings, adverse effects, misadventures, or sequelae. Do not assign Y93.9, Unspecified activity, if the activity is not stated. A code from category Y93 is appropriate

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