ICD-10-CM Diagnosis Codes in Group C4A
- C4A.0 Merkel cell carcinoma of lip ICD-10-CM Diagnosis Code
- C4A.10 Merkel cell carcinoma of unspecified eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.11 Merkel cell carcinoma of right eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.111 Merkel cell carcinoma of right upper eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.112 Merkel cell carcinoma of right lower eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.12 Merkel cell carcinoma of left eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.121 Merkel cell carcinoma of left upper eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.122 Merkel cell carcinoma of left lower eyelid, including canthus ICD-10-CM Diagnosis Code
- C4A.20 Merkel cell carcinoma of unspecified ear and external auricular canal ICD-10-CM Diagnosis Code
- C4A.21 Merkel cell carcinoma of right ear and external auricular canal ICD-10-CM Diagnosis Code
- C4A.22 Merkel cell carcinoma of left ear and external auricular canal ICD-10-CM Diagnosis Code
- C4A.30 Merkel cell carcinoma of unspecified part of face ICD-10-CM Diagnosis Code
- C4A.31 Merkel cell carcinoma of nose ICD-10-CM Diagnosis Code
- C4A.39 Merkel cell carcinoma of other parts of face ICD-10-CM Diagnosis Code
- C4A.4 Merkel cell carcinoma of scalp and neck ICD-10-CM Diagnosis Code
- C4A.51 Merkel cell carcinoma of anal skin ICD-10-CM Diagnosis Code
- C4A.52 Merkel cell carcinoma of skin of breast ICD-10-CM Diagnosis Code
- C4A.59 Merkel cell carcinoma of other part of trunk ICD-10-CM Diagnosis Code
- C4A.60 Merkel cell carcinoma of unspecified upper limb, including shoulder ICD-10-CM Diagnosis Code
- C4A.61 Merkel cell carcinoma of right upper limb, including shoulder ICD-10-CM Diagnosis Code
- C4A.62 Merkel cell carcinoma of left upper limb, including shoulder ICD-10-CM Diagnosis Code
- C4A.70 Merkel cell carcinoma of unspecified lower limb, including hip ICD-10-CM Diagnosis Code
- C4A.71 Merkel cell carcinoma of right lower limb, including hip ICD-10-CM Diagnosis Code
- C4A.72 Merkel cell carcinoma of left lower limb, including hip ICD-10-CM Diagnosis Code
- C4A.8 Merkel cell carcinoma of overlapping sites ICD-10-CM Diagnosis Code
- C4A.9 Merkel cell carcinoma, unspecified ICD-10-CM Diagnosis Code
ICD-10-CM Diagnosis Codes - C Group
ICD-10-CM Diagnosis Codes
The International Classification of Diseases, 10th Edition, Clinical Modification/Procedure Coding System (ICD-10-CM/PCS) will enhance accurate payment for services rendered and facilitate evaluation of medical processes and outcomes.The new classification system provides significant improvements through greater detailed information and the ability to expand in order to capture additional advancements in clinical medicine.
ICD-10-CM - The diagnosis classification system developed by the Centers for Disease Control and Prevention for use in all U.S. health care treatment settings. Diagnosis coding under this system uses a different number of digits and some other changes, but the format is very much the same as ICD-9-CM.
The U.S. Department of Health and Human Services (HHS) has mandated industry-wide adoption of ICD-10-CM and ICD-10-PCS code sets by Oct. 1, 2011. ICD-10-CMS will affect all components of the healthcare industry. Ambulatory surgery centers (ASCs) will not be affected by ICD-10-PCS unless they are utilizing ICD-9-CM volume 3 for inpatient procedures.
The two major changes in the ICD-9-CM to ICD-10-CM code sets are structure and detail. The codes will move from a numeric five-character size to an alphanumeric seven-character size. At current count, there are approximately 17,000 ICD-9-CM codes and the possibility of 155,000 ICD-10-CM/PCS codes. The codes are far more specific which will allow for greater accuracy.
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