In this article will discuss on Dehydration ICD 10 codes, guidelines with examples.
We use the term dehydration when there is very less amount of water content in the body. This can happen due to continuous or multiple times of nausea, vomiting or diarrhea. Lack of water in body affects normal body function. Heart rate and blood pressure gets decreased due to dehydration. We need to visit doctor if diarrhea occurs for more than 24 hours. If dehydration becomes very severe and not getting medical attention, this may lead to coma.
Dehydration has symptoms like fatigue, dizziness, dry mouth and tongue, extreme thirst, dark coloured urine, sunken eyes and cheeks.
Performing physical exam and signs and symptoms are enough to diagnose dehydration for a physician. Blood test and urinalysis are done to find out the severity of dehydration such as mild, moderate or severe.
Dehydration ICD 10 Codes are located in chapter 4 (endocrine nutritional and metabolic diseases, code range E00 – E89 and chapter 16 (conditions in perinatal period, code range P00-P96)
E86.0 – Dehydration
P74.1 – Dehydration in newborn (from birth to 28 days)
For example, there is an assumption that AKI(acute kidney injury) should be coded first when patient is admitted with AKI and dehydration. But as per guideline main reason for admission should be coded first. Provider can be queried if not mentioned clearly.
28 year old female presents to emergency department with abdominal pain and weakness for 2 days. Associated symptoms include diarrhea with loose watery stools, nausea and non bloody vomiting. Abdominal pain is sharp and exacerbated by movement. Patient has a past medical history (diverticulosis). Vitals showed fever of 101 degree. BP was low with reading of 100/65 mmHg. Physical examination showed left lower abdominal tenderness and tachycardia. Rectal exam does not show any mass or heme positive stool. Physician ordered for a blood test and stool test. He reviewed the results and diagnosed as gastroenteritis, mild dehydration and fatigue. Patient was admitted for further management of gastroenteritis.
ICD-10 codes for this scenario would be:
K52.9 – Gastroenteritis
E86.0 – Dehydration
R50.9 – Fever
R10.32 – LLQ abdominal pain
R00.0 – Tachycardia
Note: In this scenario patient is getting admitted for gastroenteritis management. As dehydration is mild, it can be managed on outpatient visits. Hence we coded gastroenteritis as primary followed by dehydration.
Christopher is a 57 year old male came to hospital along with his son. He looks very tired. He just finished his first chemotherapy for esophageal cancer yesterday. Since then he has vomiting and diarrhea. He has low BP and fever of 101 degree as per vitals. His respiratory rate is also reduced to 9 BPM. Physical exam showed epigastric tenderness. Patient was started on IV fluids immediately and admitted for management of dehydration.
ICD-10 codes for this scenario would be:
E86.0 – Dehydration
C15.9 – Esophageal cancer
T45.1X5A – Adverse effect of chemotherapy
R50.9 – fever
R10.816 – Epigastric abdominal tenderness
Note: Patient is admitted for further management of dehydration; hence it is assigned as primary code. Adverse effect of chemotherapy also should be coded as this is the reason for dehydration.
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