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CDC Releases Errata for 2018 I-10 Guidelines

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  • August 30, 2017
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CDC Releases Errata for 2018 I-10 Guidelines

One week after the release of the 2018 ICD-10-CM Official Guidelines by the Centers for Disease Control and Prevention (CDC), the agency released an errata with updated rules for diabetes mellitus, hypertension, and principal diagnosis. And while some publishers, like AAPC, were able to put their ICD-10-CMs to press with the new guidelines, it was too late to include the following changes.


Chapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)
Diabetes Mellitus

6)Secondary diabetes mellitus
Codes under categories E08, Diabetes mellitus due to underlying condition, E09, Drug or chemical induced diabetes mellitus, and E13,Other specified diabetes mellitus, identify complications/manifestations associated with secondary diabetes mellitus. Secondary diabetes is always caused by another condition or event (e.g., cystic fibrosis,malignant neoplasm of pancreas, pancreatectomy, adverse effect of drug, or poisoning).

(a)Secondary diabetes mellitus and the use of insulin or oralhypoglycemic drugs
For patients with secondary diabetes mellitus who routinely use insulin or oral hypoglycemic drugs, an additional code from category Z79 should be assigned to identify the long-term (current) use of insulin or oral hypoglycemic drugs. If the patient is treated with both oral medications and insulin, only the code for long-term(current) use of insulin should be assigned. Code Z79.4 should not be assigned if insulin is given temporarily to bring a secondary diabetic patient’s blood sugar under control during an encounter.


Chapter 9: Diseases of the Circulatory System (I00-I99)


10) Hypertensive Crisis
Assign a code from category I16, Hypertensive crisis, for documented hypertensive urgency, hypertensive emergency or unspecified hypertensive crisis. Code also any identified hypertensive disease (I10-I15). The sequencing is based on the reason for the encounter.

11) Pulmonary Hypertension
Pulmonary hypertension is classified to category I27, Other pulmonary heart diseases. For secondary pulmonary hypertension (I27.1, I27.2-), code also any associated conditions or adverse effects of drugs or toxins. The sequencing is based on the reason for the encounter.

Principal Diagnosis

Section ll  Selection of Principal Diagnosis

K. Admissions/Encounters for Rehabilitation
When the purpose for the admission/encounter is rehabilitation, sequence first the code for the condition for which the service is being performed. For example, for an admission/encounter for rehabilitation for right-sided dominant hemiplegia following a cerebrovascular infarction, report code I69.351, Hemiplegia and hemiparesis following cerebral infarction affecting right dominant side, as the first-listed or principal diagnosis.

If the condition for which the rehabilitation service is being provided is no longer present, report the appropriate aftercare code as the first-listed or principal diagnosis, unless the rehabilitation service is being provided following an injury. For rehabilitation services following active treatment of an injury, assign the injury code with the appropriate seventh character for subsequent encounter as the first-listed or principal diagnosis. For example, if a patient with severe degenerative osteoarthritis of the hip, underwent hip replacement and the current encounter/admission is for rehabilitation, report code Z47.1, Aftercare following joint replacement surgery, as the first-listed or principal diagnosis. If the patient requires rehabilitation post hip replacement for right intertrochanteric femur fracture, report code S72.141D, Displaced intertrochanteric fracture of right femur, subsequent encounter for closed fracture with routine healing, as the first-listed or principal diagnosis.

Brad Ericson
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Brad Ericson, MPC, CPC, COSC, is a seasoned healthcare writer and editor. He directed publishing at AAPC for nearly 12 years and worked at Ingenix for 13 years and Aetna Health Plans prior to that. He has been writing and publishing about healthcare since 1979. He received his Bachelor's in Journalism from Idaho State University and his Master's of Professional Communication degree from Westminster College of Salt Lake City.

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