{"id":13939,"date":"2021-07-14T11:05:37","date_gmt":"2021-07-14T11:05:37","guid":{"rendered":"https:\/\/www.medicalbillersandcoders.com\/blog\/?p=13939"},"modified":"2026-02-11T11:56:01","modified_gmt":"2026-02-11T11:56:01","slug":"determining-time-for-anesthesia-billing","status":"publish","type":"post","link":"https:\/\/www.medicalbillersandcoders.com\/blog\/determining-time-for-anesthesia-billing\/","title":{"rendered":"Determining Time for Anesthesia Billing"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Calculating time units for anesthesia billing and coding is extremely important. A unique characteristic of anesthesia billing is the reporting of time units. Payment for anesthesia services increases with time. In addition to reporting a base unit value for an anesthesia service, the anesthesia practitioner reports anesthesia time. We shared guidelines on correctly calculating time units for all claims and reports, to ensure your claims go smoothly and are as accurate as possible.<\/span><\/p>\n<h2><strong>Determining Anesthesia Billing<\/strong><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As per the national Correct Coding Initiative (CCI) chapter 2 guidelines, anesthesia time is defined as the period during which an anesthesia practitioner is present with the patient. It starts when the anesthesia practitioner begins to prepare the patient for anesthesia services in the operating room or an equivalent area and ends when the anesthesia practitioner is no longer furnishing anesthesia services to the patient (i.e., when the patient may be placed safely under postoperative care).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Anesthesia time is a continuous time period from the start of anesthesia to the end of an anesthesia service. In counting anesthesia time, the anesthesia practitioner can add blocks of time around an interruption in anesthesia time as long as the anesthesia practitioner is furnishing continuous anesthesia care within the time periods around the interruption.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is a standard medical practice for an anesthesia practitioner to perform a patient examination and evaluation prior to surgery. This is considered part of the anesthesia service and is included in the base unit value of the anesthesia code. The evaluation and examination are not reported in the anesthesia time.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Most insurers allow for no more than a one-time unit to prepare patients for postoperative transfer to recovery. Insurers also do not allow billing for anesthesia time while the patient is in a waiting room or holding area. Also, when in the holding area, patients usually cannot be billed for antibiotics or any blood products that are administered. This is particularly the case when those services could be performed in another part of the facility.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If surgery is canceled, subsequent to the preoperative evaluation, payment may be allowed to the anesthesiologist for an Evaluation &amp; Management (E&amp;M) service and the appropriate <a href=\"https:\/\/www.cms.gov\/outreach-and-education\/medicare-learning-network-mln\/mlnproducts\/downloads\/eval-mgmt-serv-guide-icn006764.pdf\">E&amp;M code<\/a> may be reported. Note that a non-medically directed CRNA may also report an E&amp;M code under these circumstances if permitted by state law.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Medicare requires exact time reporting, without rounding. For example, if anesthesia starts at 12:02 and ends at 12:59, the anesthesia time reported is 57 minutes.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">There may be interruptions in care during a procedure, marked by when the provider is no longer personally attending to the patient. By recording the exact time care was interrupted, one can accurately report discontinuous time. For example, if the anesthesiologist begins care at 8:00, but has care interrupted at 8:24 and resumes care at 8:36 before ending care at 9:04, there would be 52 minutes of anesthesia time. This would translate to 3.47-time units.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Medicare divides the 57 minutes by 15-minute increments, for a value of 3.8-time units.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Other insurance companies may determine time units differently, for example by using ten (10), twelve (12), or fifteen (15) minute increments. Regardless of the payer, coders should not expect to see documentation with large or unexplained gaps of anesthesia time or times that always end with a \u20180\u2019 or \u20185.\u2019<\/span><\/li>\n<\/ul>\n<h2><strong>Example for Determining Time<\/strong><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A patient who undergoes a cataract extraction may require monitored anesthesia care. This may require the administration of a sedative in conjunction with a peri\/retrobulbar injection for regional block anesthesia. Subsequently, an interval of 30 minutes or more may transpire during which time the patient does not require monitoring by an anesthesia practitioner.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After this period, monitoring will commence again for the cataract extraction and ultimately the patient will be released to the surgeon\u2019s care or to recovery. The time that may be reported would include the time for the monitoring during the block and during the procedure.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The interval time and the recovery time are not included in the anesthesia time calculation. Also, if unusual services not bundled into the anesthesia service are required, the time spent delivering these services before anesthesia time begins or after it ends may not be included as reportable anesthesia time.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, if it is medically necessary for the anesthesia practitioner to continuously monitor the patient during the interval time and not perform any other service, the interval time may be included in the anesthesia time.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The ingredients for successful anesthesia billing include an experienced and trained revenue cycle team and compliant billing practices. Outsourcing your <a href=\"https:\/\/www.medicalbillersandcoders.com\/speciality\/anesthesiology-medical-billing-services.html\">Anesthesia<\/a><\/span> <span style=\"font-weight: 400;\"><a href=\"https:\/\/www.medicalbillersandcoders.com\/speciality\/anesthesiology-medical-billing-services.html\">billing and coding<\/a> needs will help shift your focus to offering improved patient care. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">We are having a team of HIPAA-compliant experts with a clean claim submission rate of 98%. <\/span><\/p>\n<p><a href=\"https:\/\/www.medicalbillersandcoders.com\/contact-us.aspx\"><span style=\"font-weight: 400;\">Get in touch with us!<\/span><\/a><\/p>\n<h2><strong>FAQs:<\/strong><\/h2>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1770810736539\"><strong class=\"schema-faq-question\">1. What is anesthesia time and how is it calculated?<\/strong> <p class=\"schema-faq-answer\">Anesthesia time is the duration the anesthesia practitioner is present with the patient, starting from preparation in the operating room to when the patient is safely under postoperative care. It\u2019s calculated without rounding, with exact minutes recorded.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770810751144\"><strong class=\"schema-faq-question\">2. Can interruptions in anesthesia care affect billing?<\/strong> <p class=\"schema-faq-answer\">Yes, interruptions can be accounted for, provided that the anesthesia practitioner resumes care. Continuous time around these interruptions can be added, but only the active monitoring time counts toward billing.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770810761174\"><strong class=\"schema-faq-question\">3. Are preoperative evaluations included in anesthesia time?<\/strong> <p class=\"schema-faq-answer\">No, preoperative evaluations are part of the anesthesia service and are included in the base unit value of the anesthesia code but are not counted in the anesthesia time calculation.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770810770723\"><strong class=\"schema-faq-question\">4. How does Medicare differ from other insurers in reporting anesthesia time?<\/strong> <p class=\"schema-faq-answer\"><a href=\"https:\/\/www.medicare.gov\/\">Medicare<\/a> requires exact reporting of time without rounding, dividing total minutes by 15-minute increments to determine time units. Other insurers may use different increments, like 10 or 12 minutes.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770810782966\"><strong class=\"schema-faq-question\">5. What should be documented to support anesthesia billing claims?<\/strong> <p class=\"schema-faq-answer\">Documentation should accurately reflect continuous care without large gaps in time and should avoid patterns that end in \u20180\u2019 or \u20185.\u2019 It\u2019s essential to clearly note interruptions and any necessary monitoring during intervals.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Calculating time units for anesthesia billing and coding is extremely important. A unique characteristic of anesthesia billing is the reporting of time units. Payment for anesthesia services increases with time. In addition to reporting a base unit value for an anesthesia service, the anesthesia practitioner reports anesthesia time. We shared guidelines on correctly calculating time [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":13940,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-13939","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medical-billing-services"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Estimating Anesthesia Billing Time Using the Medicare Claim<\/title>\n<meta name=\"description\" content=\"Know Anesthesia billing claim guidelines and rules for getting payments. 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How to bill anesthesia claims in the correct manner without delay.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.medicalbillersandcoders.com\/blog\/determining-time-for-anesthesia-billing\/\" \/>\n<meta property=\"og:site_name\" content=\"Medical Billing and RCM Blogs\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-14T11:05:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T11:56:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.medicalbillersandcoders.com\/blog\/wp-content\/uploads\/Blog-Determining-Time-for-Anesthesia-Billing.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"748\" \/>\n\t<meta property=\"og:image:height\" content=\"288\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Medical Billers and Coders\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Medical Billers and Coders\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/\"},\"author\":{\"name\":\"Medical Billers and Coders\",\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/#\\\/schema\\\/person\\\/76d3509f0e1252992227e858251f1a8b\"},\"headline\":\"Determining Time for Anesthesia Billing\",\"datePublished\":\"2021-07-14T11:05:37+00:00\",\"dateModified\":\"2026-02-11T11:56:01+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/\"},\"wordCount\":988,\"publisher\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/wp-content\\\/uploads\\\/Blog-Determining-Time-for-Anesthesia-Billing.jpg\",\"articleSection\":[\"Medical Billing Services\"],\"inLanguage\":\"en-US\",\"copyrightYear\":\"2021\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/#organization\"}},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/\",\"url\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/\",\"name\":\"Estimating Anesthesia Billing Time Using the Medicare Claim\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/wp-content\\\/uploads\\\/Blog-Determining-Time-for-Anesthesia-Billing.jpg\",\"datePublished\":\"2021-07-14T11:05:37+00:00\",\"dateModified\":\"2026-02-11T11:56:01+00:00\",\"description\":\"Know Anesthesia billing claim guidelines and rules for getting payments. 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The main goal of our organization is to assist physicians looking for billers and coders, at the same time help billing specialists looking for jobs, reach the right place.\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810736539\",\"position\":1,\"url\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810736539\",\"name\":\"1. What is anesthesia time and how is it calculated?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Anesthesia time is the duration the anesthesia practitioner is present with the patient, starting from preparation in the operating room to when the patient is safely under postoperative care. It\u2019s calculated without rounding, with exact minutes recorded.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810751144\",\"position\":2,\"url\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810751144\",\"name\":\"2. Can interruptions in anesthesia care affect billing?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, interruptions can be accounted for, provided that the anesthesia practitioner resumes care. Continuous time around these interruptions can be added, but only the active monitoring time counts toward billing.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810761174\",\"position\":3,\"url\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810761174\",\"name\":\"3. Are preoperative evaluations included in anesthesia time?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, preoperative evaluations are part of the anesthesia service and are included in the base unit value of the anesthesia code but are not counted in the anesthesia time calculation.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810770723\",\"position\":4,\"url\":\"https:\\\/\\\/www.medicalbillersandcoders.com\\\/blog\\\/determining-time-for-anesthesia-billing\\\/#faq-question-1770810770723\",\"name\":\"4. 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